Children Under Age 18 Receiving SSI Benefits for Autistic Disorders, 
by State, Dec. 2000 through Dec. 2011: 

State: Alabama; 

2000: 
Autistic disorders: 535; 
Population: 1,123,000; 
Rate of children receiving diagnosis per 1,000 population: 0.48; 
2001: 
Autistic disorders: 624; 
Population: 1,113,000; 
Rate of children receiving diagnosis per 1,000 population: 0.56; 
2002: 
Autistic disorders: 604; 
Population: 1,107,000; 
Rate of children receiving diagnosis per 1,000 population: 0.55; 
2003: 
Autistic disorders: 718; 
Population: 1,108,000; 
Rate of children receiving diagnosis per 1,000 population: 0.65; 
2004: 
Autistic disorders: 790; 
Population: 1,095,000; 
Rate of children receiving diagnosis per 1,000 population: 0.72; 
2005: 
Autistic disorders: 900; 
Population: 1,090,000; 
Rate of children receiving diagnosis per 1,000 population: 0.83; 
2006: 
Autistic disorders: 988; 
Population: 1,114,000; 
Rate of children receiving diagnosis per 1,000 population: 0.89; 
2007: 
Autistic disorders: 1,115; 
Population: 1,124,000; 
Rate of children receiving diagnosis per 1,000 population: 0.99; 
2008: 
Autistic disorders: 1,243; 
Population: 1,122,000; 
Rate of children receiving diagnosis per 1,000 population: 1.11; 
2009: 
Autistic disorders: 1,422; 
Population: 1,129,000; 
Rate of children receiving diagnosis per 1,000 population: 1.26; 
2010: 
Autistic disorders: 1,507; 
Population: 1,132,000; 
Rate of children receiving diagnosis per 1,000 population: 1.33; 
2011: 
Autistic disorders: 1,674; 
Population: 1,127,000; 
Rate of children receiving diagnosis per 1,000 population: 1.49. 

State: Alaska; 

2000: 
Autistic disorders: 71; 
Population: 191,000; 
Rate of children receiving diagnosis per 1,000 population: 0.37; 
2001: 
Autistic disorders: 90; 
Population: 190,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2002: 
Autistic disorders: 93; 
Population: 192,000; 
Rate of children receiving diagnosis per 1,000 population: 0.48; 
2003: 
Autistic disorders: 78; 
Population: 189,000; 
Rate of children receiving diagnosis per 1,000 population: 0.41; 
2004: 
Autistic disorders: 80; 
Population: 188,000; 
Rate of children receiving diagnosis per 1,000 population: 0.43; 
2005: 
Autistic disorders: 95; 
Population: 188,000; 
Rate of children receiving diagnosis per 1,000 population: 0.50; 
2006: 
Autistic disorders: 112; 
Population: 181,000; 
Rate of children receiving diagnosis per 1,000 population: 0.62; 
2007: 
Autistic disorders: 127; 
Population: 182,000; 
Rate of children receiving diagnosis per 1,000 population: 0.70; 
2008: 
Autistic disorders: 138; 
Population: 180,000; 
Rate of children receiving diagnosis per 1,000 population: 0.77; 
2009: 
Autistic disorders: 156; 
Population: 184,000; 
Rate of children receiving diagnosis per 1,000 population: 0.85; 
2010: 
Autistic disorders: 176; 
Population: 187,000; 
Rate of children receiving diagnosis per 1,000 population: 0.94; 
2011: 
Autistic disorders: 187; 
Population: 188,000; 
Rate of children receiving diagnosis per 1,000 population: 0.99. 

State: Arizona; 

2000: 
Autistic disorders: 438; 
Population: 1,367,000; 
Rate of children receiving diagnosis per 1,000 population: 0.32; 
2001: 
Autistic disorders: 519; 
Population: 1,437,000; 
Rate of children receiving diagnosis per 1,000 population: 0.36; 
2002: 
Autistic disorders: 508; 
Population: 1,477,000; 
Rate of children receiving diagnosis per 1,000 population: 0.34; 
2003: 
Autistic disorders: 564; 
Population: 1,519,000; 
Rate of children receiving diagnosis per 1,000 population: 0.37; 
2004: 
Autistic disorders: 644; 
Population: 1,547,000; 
Rate of children receiving diagnosis per 1,000 population: 0.42; 
2005: 
Autistic disorders: 736; 
Population: 1,580,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2006: 
Autistic disorders: 843; 
Population: 1,628,000; 
Rate of children receiving diagnosis per 1,000 population: 0.52; 
2007: 
Autistic disorders: 936; 
Population: 1,670,000; 
Rate of children receiving diagnosis per 1,000 population: 0.56; 
2008: 
Autistic disorders: 1,061; 
Population: 1,707,000; 
Rate of children receiving diagnosis per 1,000 population: 0.62; 
2009: 
Autistic disorders: 1,274; 
Population: 1,732,000; 
Rate of children receiving diagnosis per 1,000 population: 0.74; 
2010: 
Autistic disorders: 1,409; 
Population: 1,629,000; 
Rate of children receiving diagnosis per 1,000 population: 0.86; 
2011: 
Autistic disorders: 1,633; 
Population: 1,625,000; 
Rate of children receiving diagnosis per 1,000 population: 1.00. 

State: Arkansas; 

2000: 
Autistic disorders: 291; 
Population: 680,000; 
Rate of children receiving diagnosis per 1,000 population: 0.43; 
2001: 
Autistic disorders: 350; 
Population: 681,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2002: 
Autistic disorders: 371; 
Population: 678,000; 
Rate of children receiving diagnosis per 1,000 population: 0.55; 
2003: 
Autistic disorders: 410; 
Population: 682,000; 
Rate of children receiving diagnosis per 1,000 population: 0.60; 
2004: 
Autistic disorders: 455; 
Population: 677,000; 
Rate of children receiving diagnosis per 1,000 population: 0.67; 
2005: 
Autistic disorders: 537; 
Population: 676,000; 
Rate of children receiving diagnosis per 1,000 population: 0.79; 
2006: 
Autistic disorders: 633; 
Population: 691,000; 
Rate of children receiving diagnosis per 1,000 population: 0.92; 
2007: 
Autistic disorders: 717; 
Population: 701,000; 
Rate of children receiving diagnosis per 1,000 population: 1.02; 
2008: 
Autistic disorders: 794; 
Population: 702,000; 
Rate of children receiving diagnosis per 1,000 population: 1.13; 
2009: 
Autistic disorders: 926; 
Population: 710,000; 
Rate of children receiving diagnosis per 1,000 population: 1.30; 
2010: 
Autistic disorders: 1,054; 
Population: 711,000; 
Rate of children receiving diagnosis per 1,000 population: 1.48; 
2011: 
Autistic disorders: 1,168; 
Population: 710,000; 
Rate of children receiving diagnosis per 1,000 population: 1.64. 

State: California; 

2000: 
Autistic disorders: 4,045; 
Population: 9,250,000; 
Rate of children receiving diagnosis per 1,000 population: 0.44; 
2001: 
Autistic disorders: 4,601; 
Population: 9,378,000; 
Rate of children receiving diagnosis per 1,000 population: 0.49; 
2002: 
Autistic disorders: 5,106; 
Population: 9,452,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2003: 
Autistic disorders: 5,909; 
Population: 9,420,000; 
Rate of children receiving diagnosis per 1,000 population: 0.63; 
2004: 
Autistic disorders: 6,629; 
Population: 9,596,000; 
Rate of children receiving diagnosis per 1,000 population: 0.69; 
2005: 
Autistic disorders: 7,400; 
Population: 9,702,000; 
Rate of children receiving diagnosis per 1,000 population: 0.76; 
2006: 
Autistic disorders: 8,286; 
Population: 9,533,000; 
Rate of children receiving diagnosis per 1,000 population: 0.87; 
2007: 
Autistic disorders: 9,370; 
Population: 9,384,000; 
Rate of children receiving diagnosis per 1,000 population: 1.00; 
2008: 
Autistic disorders: 10,970; 
Population: 9,365,000; 
Rate of children receiving diagnosis per 1,000 population: 1.17; 
2009: 
Autistic disorders: 12,599; 
Population: 9,436,000; 
Rate of children receiving diagnosis per 1,000 population: 1.34; 
2010: 
Autistic disorders: 13,909; 
Population: 9,295,000; 
Rate of children receiving diagnosis per 1,000 population: 1.50; 
2011: 
Autistic disorders: 15,710; 
Population: 9,272,000; 
Rate of children receiving diagnosis per 1,000 population: 1.69. 

State: Colorado; 

2000: 
Autistic disorders: 202; 
Population: 1,101,000; 
Rate of children receiving diagnosis per 1,000 population: 0.18; 
2001: 
Autistic disorders: 211; 
Population: 1,137,000; 
Rate of children receiving diagnosis per 1,000 population: 0.19; 
2002: 
Autistic disorders: 199; 
Population: 1,151,000; 
Rate of children receiving diagnosis per 1,000 population: 0.17; 
2003: 
Autistic disorders: 239; 
Population: 1,153,000; 
Rate of children receiving diagnosis per 1,000 population: 0.21; 
2004: 
Autistic disorders: 285; 
Population: 1,179,000; 
Rate of children receiving diagnosis per 1,000 population: 0.24; 
2005: 
Autistic disorders: 334; 
Population: 1,181,000; 
Rate of children receiving diagnosis per 1,000 population: 0.28; 
2006: 
Autistic disorders: 383; 
Population: 1,169,000; 
Rate of children receiving diagnosis per 1,000 population: 0.33; 
2007: 
Autistic disorders: 452; 
Population: 1,193,000; 
Rate of children receiving diagnosis per 1,000 population: 0.38; 
2008: 
Autistic disorders: 512; 
Population: 1,207,000; 
Rate of children receiving diagnosis per 1,000 population: 0.42; 
2009: 
Autistic disorders: 607; 
Population: 1,228,000; 
Rate of children receiving diagnosis per 1,000 population: 0.49; 
2010: 
Autistic disorders: 743; 
Population: 1,226,000; 
Rate of children receiving diagnosis per 1,000 population: 0.61; 
2011: 
Autistic disorders: 844; 
Population: 1,230,000; 
Rate of children receiving diagnosis per 1,000 population: 0.69. 

State: Connecticut; 

2000: 
Autistic disorders: 313; 
Population: 842,000; 
Rate of children receiving diagnosis per 1,000 population: 0.37; 
2001: 
Autistic disorders: 376; 
Population: 859,000; 
Rate of children receiving diagnosis per 1,000 population: 0.44; 
2002: 
Autistic disorders: 369; 
Population: 873,000; 
Rate of children receiving diagnosis per 1,000 population: 0.42; 
2003: 
Autistic disorders: 417; 
Population: 835,000; 
Rate of children receiving diagnosis per 1,000 population: 0.50; 
2004: 
Autistic disorders: 449; 
Population: 839,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2005: 
Autistic disorders: 476; 
Population: 835,000; 
Rate of children receiving diagnosis per 1,000 population: 0.57; 
2006: 
Autistic disorders: 546; 
Population: 818,000; 
Rate of children receiving diagnosis per 1,000 population: 0.67; 
2007: 
Autistic disorders: 654; 
Population: 820,000; 
Rate of children receiving diagnosis per 1,000 population: 0.80; 
2008: 
Autistic disorders: 767; 
Population: 812,000; 
Rate of children receiving diagnosis per 1,000 population: 0.94; 
2009: 
Autistic disorders: 837; 
Population: 808,000; 
Rate of children receiving diagnosis per 1,000 population: 1.04; 
2010: 
Autistic disorders: 953; 
Population: 817,000; 
Rate of children receiving diagnosis per 1,000 population: 1.17; 
2011: 
Autistic disorders: 1,072; 
Population: 803,000; 
Rate of children receiving diagnosis per 1,000 population: 1.33. 

State: Delaware; 

2000: 
Autistic disorders: 86; 
Population: 195,000; 
Rate of children receiving diagnosis per 1,000 population: 0.44; 
2001: 
Autistic disorders: 98; 
Population: 191,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2002: 
Autistic disorders: 102; 
Population: 190,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2003: 
Autistic disorders: 101; 
Population: 199,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2004: 
Autistic disorders: 118; 
Population: 194,000; 
Rate of children receiving diagnosis per 1,000 population: 0.61; 
2005: 
Autistic disorders: 129; 
Population: 196,000; 
Rate of children receiving diagnosis per 1,000 population: 0.66; 
2006: 
Autistic disorders: 158; 
Population: 203,000; 
Rate of children receiving diagnosis per 1,000 population: 0.78; 
2007: 
Autistic disorders: 181; 
Population: 206,000; 
Rate of children receiving diagnosis per 1,000 population: 0.88; 
2008: 
Autistic disorders: 200; 
Population: 206,000; 
Rate of children receiving diagnosis per 1,000 population: 0.97; 
2009: 
Autistic disorders: 233; 
Population: 207,000; 
Rate of children receiving diagnosis per 1,000 population: 1.13; 
2010: 
Autistic disorders: 241; 
Population: 206,000; 
Rate of children receiving diagnosis per 1,000 population: 1.17; 
2011: 
Autistic disorders: 278; 
Population: 205,000; 
Rate of children receiving diagnosis per 1,000 population: 1.36. 

State: District of Columbia; 

2000: 
Autistic disorders: 62; 
Population: 115,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2001: 
Autistic disorders: 74; 
Population: 112,000; 
Rate of children receiving diagnosis per 1,000 population: 0.66; 
2002: 
Autistic disorders: 62; 
Population: 112,000; 
Rate of children receiving diagnosis per 1,000 population: 0.55; 
2003: 
Autistic disorders: 59; 
Population: 108,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2004: 
Autistic disorders: 54; 
Population: 110,000; 
Rate of children receiving diagnosis per 1,000 population: 0.49; 
2005: 
Autistic disorders: 62; 
Population: 113,000; 
Rate of children receiving diagnosis per 1,000 population: 0.55; 
2006: 
Autistic disorders: 86; 
Population: 115,000; 
Rate of children receiving diagnosis per 1,000 population: 0.75; 
2007: 
Autistic disorders: 92; 
Population: 114,000; 
Rate of children receiving diagnosis per 1,000 population: 0.81; 
2008: 
Autistic disorders: 98; 
Population: 112,000; 
Rate of children receiving diagnosis per 1,000 population: 0.87; 
2009: 
Autistic disorders: 122; 
Population: 114,000; 
Rate of children receiving diagnosis per 1,000 population: 1.07; 
2010: 
Autistic disorders: 144; 
Population: 101,000; 
Rate of children receiving diagnosis per 1,000 population: 1.43; 
2011: 
Autistic disorders: 185; 
Population: 105,000; 
Rate of children receiving diagnosis per 1,000 population: 1.76. 

State: Florida; 

2000: 
Autistic disorders: 1,364; 
Population: 3,646,000; 
Rate of children receiving diagnosis per 1,000 population: 0.37; 
2001: 
Autistic disorders: 1,602; 
Population: 3,791,000; 
Rate of children receiving diagnosis per 1,000 population: 0.42; 
2002: 
Autistic disorders: 1,519; 
Population: 3,882,000; 
Rate of children receiving diagnosis per 1,000 population: 0.39; 
2003: 
Autistic disorders: 1,805; 
Population: 3,924,000; 
Rate of children receiving diagnosis per 1,000 population: 0.46; 
2004: 
Autistic disorders: 2,091; 
Population: 4,003,000; 
Rate of children receiving diagnosis per 1,000 population: 0.52; 
2005: 
Autistic disorders: 2,563; 
Population: 4,068,000; 
Rate of children receiving diagnosis per 1,000 population: 0.63; 
2006: 
Autistic disorders: 2,977; 
Population: 4,022,000; 
Rate of children receiving diagnosis per 1,000 population: 0.74; 
2007: 
Autistic disorders: 3,449; 
Population: 4,044,000; 
Rate of children receiving diagnosis per 1,000 population: 0.85; 
2008: 
Autistic disorders: 4,083; 
Population: 4,004,000; 
Rate of children receiving diagnosis per 1,000 population: 1.02; 
2009: 
Autistic disorders: 4,914; 
Population: 4,058,000; 
Rate of children receiving diagnosis per 1,000 population: 1.21; 
2010: 
Autistic disorders: 5,818; 
Population: 4,002,000; 
Rate of children receiving diagnosis per 1,000 population: 1.45; 
2011: 
Autistic disorders: 6,877; 
Population: 3,994,000; 
Rate of children receiving diagnosis per 1,000 population: 1.72. 

State: GEORGIA; 

2000: 
Autistic disorders: 752; 
Population: 2,169,000; 
Rate of children receiving diagnosis per 1,000 population: 0.35; 
2001: 
Autistic disorders: 857; 
Population: 2,229,000; 
Rate of children receiving diagnosis per 1,000 population: 0.38; 
2002: 
Autistic disorders: 924; 
Population: 2,268,000; 
Rate of children receiving diagnosis per 1,000 population: 0.41; 
2003: 
Autistic disorders: 1,035; 
Population: 2,297,000; 
Rate of children receiving diagnosis per 1,000 population: 0.45; 
2004: 
Autistic disorders: 1,169; 
Population: 2,333,000; 
Rate of children receiving diagnosis per 1,000 population: 0.50; 
2005: 
Autistic disorders: 1,413; 
Population: 2,363,000; 
Rate of children receiving diagnosis per 1,000 population: 0.60; 
2006: 
Autistic disorders: 1,599; 
Population: 2,455,000; 
Rate of children receiving diagnosis per 1,000 population: 0.65; 
2007: 
Autistic disorders: 1,742; 
Population: 2,532,000; 
Rate of children receiving diagnosis per 1,000 population: 0.69; 
2008: 
Autistic disorders: 1,913; 
Population: 2,549,000; 
Rate of children receiving diagnosis per 1,000 population: 0.75; 
2009: 
Autistic disorders: 2,114; 
Population: 2,584,000; 
Rate of children receiving diagnosis per 1,000 population: 0.82; 
2010: 
Autistic disorders: 2,367; 
Population: 2,492,000; 
Rate of children receiving diagnosis per 1,000 population: 0.95; 
2011: 
Autistic disorders: 2,563; 
Population: 2,490,000; 
Rate of children receiving diagnosis per 1,000 population: 1.03. 

State: Hawaii; 

2000: 
Autistic disorders: 63; 
Population: 296,000; 
Rate of children receiving diagnosis per 1,000 population: 0.21; 
2001: 
Autistic disorders: 67; 
Population: 295,000; 
Rate of children receiving diagnosis per 1,000 population: 0.23; 
2002: 
Autistic disorders: 90; 
Population: 296,000; 
Rate of children receiving diagnosis per 1,000 population: 0.30; 
2003: 
Autistic disorders: 96; 
Population: 297,000; 
Rate of children receiving diagnosis per 1,000 population: 0.32; 
2004: 
Autistic disorders: 107; 
Population: 299,000; 
Rate of children receiving diagnosis per 1,000 population: 0.36; 
2005: 
Autistic disorders: 120; 
Population: 300,000; 
Rate of children receiving diagnosis per 1,000 population: 0.40; 
2006: 
Autistic disorders: 130; 
Population: 298,000; 
Rate of children receiving diagnosis per 1,000 population: 0.44; 
2007: 
Autistic disorders: 137; 
Population: 286,000; 
Rate of children receiving diagnosis per 1,000 population: 0.48; 
2008: 
Autistic disorders: 141; 
Population: 285,000; 
Rate of children receiving diagnosis per 1,000 population: 0.49; 
2009: 
Autistic disorders: 165; 
Population: 290,000; 
Rate of children receiving diagnosis per 1,000 population: 0.57; 
2010: 
Autistic disorders: 169; 
Population: 304,000; 
Rate of children receiving diagnosis per 1,000 population: 0.56; 
2011: 
Autistic disorders: 176; 
Population: 305,000; 
Rate of children receiving diagnosis per 1,000 population: 0.58. 

State: Idaho; 

2000: 
Autistic disorders: 155; 
Population: 369,000; 
Rate of children receiving diagnosis per 1,000 population: 0.42; 
2001: 
Autistic disorders: 183; 
Population: 371,000; 
Rate of children receiving diagnosis per 1,000 population: 0.49; 
2002: 
Autistic disorders: 181; 
Population: 370,000; 
Rate of children receiving diagnosis per 1,000 population: 0.49; 
2003: 
Autistic disorders: 245; 
Population: 372,000; 
Rate of children receiving diagnosis per 1,000 population: 0.66; 
2004: 
Autistic disorders: 287; 
Population: 372,000; 
Rate of children receiving diagnosis per 1,000 population: 0.77; 
2005: 
Autistic disorders: 364; 
Population: 374,000; 
Rate of children receiving diagnosis per 1,000 population: 0.97; 
2006: 
Autistic disorders: 408; 
Population: 394,000; 
Rate of children receiving diagnosis per 1,000 population: 1.03; 
2007: 
Autistic disorders: 444; 
Population: 408,000; 
Rate of children receiving diagnosis per 1,000 population: 1.09; 
2008: 
Autistic disorders: 550; 
Population: 413,000; 
Rate of children receiving diagnosis per 1,000 population: 1.33; 
2009: 
Autistic disorders: 689; 
Population: 419,000; 
Rate of children receiving diagnosis per 1,000 population: 1.64; 
2010: 
Autistic disorders: 753; 
Population: 429,000; 
Rate of children receiving diagnosis per 1,000 population: 1.75; 
2011: 
Autistic disorders: 791; 
Population: 428,000; 
Rate of children receiving diagnosis per 1,000 population: 1.85. 

State: Illinois; 

2000: 
Autistic disorders: 1,224; 
Population: 3,246,000; 
Rate of children receiving diagnosis per 1,000 population: 0.38; 
2001: 
Autistic disorders: 1,354; 
Population: 3,248,000; 
Rate of children receiving diagnosis per 1,000 population: 0.42; 
2002: 
Autistic disorders: 1,430; 
Population: 3,255,000; 
Rate of children receiving diagnosis per 1,000 population: 0.44; 
2003: 
Autistic disorders: 1,574; 
Population: 3,231,000; 
Rate of children receiving diagnosis per 1,000 population: 0.49; 
2004: 
Autistic disorders: 1,718; 
Population: 3,238,000; 
Rate of children receiving diagnosis per 1,000 population: 0.53; 
2005: 
Autistic disorders: 1,963; 
Population: 3,241,000; 
Rate of children receiving diagnosis per 1,000 population: 0.61; 
2006: 
Autistic disorders: 2,216; 
Population: 3,215,000; 
Rate of children receiving diagnosis per 1,000 population: 0.69; 
2007: 
Autistic disorders: 2,399; 
Population: 3,199,000; 
Rate of children receiving diagnosis per 1,000 population: 0.75; 
2008: 
Autistic disorders: 2,582; 
Population: 3,179,000; 
Rate of children receiving diagnosis per 1,000 population: 0.81; 
2009: 
Autistic disorders: 2,801; 
Population: 3,177,000; 
Rate of children receiving diagnosis per 1,000 population: 0.88; 
2010: 
Autistic disorders: 3,101; 
Population: 3,129,000; 
Rate of children receiving diagnosis per 1,000 population: 0.99; 
2011: 
Autistic disorders: 3,376; 
Population: 3,098,000; 
Rate of children receiving diagnosis per 1,000 population: 1.09. 

State: Indiana; 

2000: 
Autistic disorders: 473; 
Population: 1,574,000; 
Rate of children receiving diagnosis per 1,000 population: 0.30; 
2001: 
Autistic disorders: 570; 
Population: 1,588,000; 
Rate of children receiving diagnosis per 1,000 population: 0.36; 
2002: 
Autistic disorders: 556; 
Population: 1,595,000; 
Rate of children receiving diagnosis per 1,000 population: 0.35; 
2003: 
Autistic disorders: 661; 
Population: 1,604,000; 
Rate of children receiving diagnosis per 1,000 population: 0.41; 
2004: 
Autistic disorders: 741; 
Population: 1,600,000; 
Rate of children receiving diagnosis per 1,000 population: 0.46; 
2005: 
Autistic disorders: 856; 
Population: 1,603,000; 
Rate of children receiving diagnosis per 1,000 population: 0.53; 
2006: 
Autistic disorders: 1,014; 
Population: 1,578,000; 
Rate of children receiving diagnosis per 1,000 population: 0.64; 
2007: 
Autistic disorders: 1,183; 
Population: 1,587,000; 
Rate of children receiving diagnosis per 1,000 population: 0.75; 
2008: 
Autistic disorders: 1,343; 
Population: 1,585,000; 
Rate of children receiving diagnosis per 1,000 population: 0.85; 
2009: 
Autistic disorders: 1,538; 
Population: 1,589,000; 
Rate of children receiving diagnosis per 1,000 population: 0.97; 
2010: 
Autistic disorders: 1,729; 
Population: 1,608,000; 
Rate of children receiving diagnosis per 1,000 population: 1.08; 
2011: 
Autistic disorders: 1,942; 
Population: 1,598,000; 
Rate of children receiving diagnosis per 1,000 population: 1.22. 

State: Iowa; 

2000: 
Autistic disorders: 194; 
Population: 734,000; 
Rate of children receiving diagnosis per 1,000 population: 0.26; 
2001: 
Autistic disorders: 214; 
Population: 711,000; 
Rate of children receiving diagnosis per 1,000 population: 0.30; 
2002: 
Autistic disorders: 269; 
Population: 698,000; 
Rate of children receiving diagnosis per 1,000 population: 0.39; 
2003: 
Autistic disorders: 299; 
Population: 693,000; 
Rate of children receiving diagnosis per 1,000 population: 0.43; 
2004: 
Autistic disorders: 342; 
Population: 680,000; 
Rate of children receiving diagnosis per 1,000 population: 0.50; 
2005: 
Autistic disorders: 387; 
Population: 671,000; 
Rate of children receiving diagnosis per 1,000 population: 0.58; 
2006: 
Autistic disorders: 423; 
Population: 710,000; 
Rate of children receiving diagnosis per 1,000 population: 0.60; 
2007: 
Autistic disorders: 488; 
Population: 711,000; 
Rate of children receiving diagnosis per 1,000 population: 0.69; 
2008: 
Autistic disorders: 529; 
Population: 713,000; 
Rate of children receiving diagnosis per 1,000 population: 0.74; 
2009: 
Autistic disorders: 585; 
Population: 713,000; 
Rate of children receiving diagnosis per 1,000 population: 0.82; 
2010: 
Autistic disorders: 620; 
Population: 728,000; 
Rate of children receiving diagnosis per 1,000 population: 0.85; 
2011: 
Autistic disorders: 681; 
Population: 724,000; 
Rate of children receiving diagnosis per 1,000 population: 0.94. 

State: Kansas; 

2000: 
Autistic disorders: 362; 
Population: 713,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2001: 
Autistic disorders: 378; 
Population: 702,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2002: 
Autistic disorders: 398; 
Population: 697,000; 
Rate of children receiving diagnosis per 1,000 population: 0.57; 
2003: 
Autistic disorders: 416; 
Population: 695,000; 
Rate of children receiving diagnosis per 1,000 population: 0.60; 
2004: 
Autistic disorders: 463; 
Population: 683,000; 
Rate of children receiving diagnosis per 1,000 population: 0.68; 
2005: 
Autistic disorders: 495; 
Population: 674,000; 
Rate of children receiving diagnosis per 1,000 population: 0.73; 
2006: 
Autistic disorders: 524; 
Population: 696,000; 
Rate of children receiving diagnosis per 1,000 population: 0.75; 
2007: 
Autistic disorders: 588; 
Population: 696,000; 
Rate of children receiving diagnosis per 1,000 population: 0.84; 
2008: 
Autistic disorders: 619; 
Population: 700,000; 
Rate of children receiving diagnosis per 1,000 population: 0.88; 
2009: 
Autistic disorders: 667; 
Population: 705,000; 
Rate of children receiving diagnosis per 1,000 population: 0.95; 
2010: 
Autistic disorders: 743; 
Population: 727,000; 
Rate of children receiving diagnosis per 1,000 population: 1.02; 
2011: 
Autistic disorders: 811; 
Population: 724,000; 
Rate of children receiving diagnosis per 1,000 population: 1.12. 

State: Kentucky; 

2000: 
Autistic disorders: 619; 
Population: 995,000; 
Rate of children receiving diagnosis per 1,000 population: 0.62; 
2001: 
Autistic disorders: 726; 
Population: 957,000; 
Rate of children receiving diagnosis per 1,000 population: 0.76; 
2002: 
Autistic disorders: 799; 
Population: 932,000; 
Rate of children receiving diagnosis per 1,000 population: 0.86; 
2003: 
Autistic disorders: 894; 
Population: 994,000; 
Rate of children receiving diagnosis per 1,000 population: 0.90; 
2004: 
Autistic disorders: 964; 
Population: 980,000; 
Rate of children receiving diagnosis per 1,000 population: 0.98; 
2005: 
Autistic disorders: 1,056; 
Population: 980,000; 
Rate of children receiving diagnosis per 1,000 population: 1.08; 
2006: 
Autistic disorders: 1,164; 
Population: 1,000,000; 
Rate of children receiving diagnosis per 1,000 population: 1.16; 
2007: 
Autistic disorders: 1,289; 
Population: 1,004,000; 
Rate of children receiving diagnosis per 1,000 population: 1.28; 
2008: 
Autistic disorders: 1,365; 
Population: 1,008,000; 
Rate of children receiving diagnosis per 1,000 population: 1.35; 
2009: 
Autistic disorders: 1,504; 
Population: 1,014,000; 
Rate of children receiving diagnosis per 1,000 population: 1.48; 
2010: 
Autistic disorders: 1,597; 
Population: 1,023,000; 
Rate of children receiving diagnosis per 1,000 population: 1.56; 
2011: 
Autistic disorders: 1,717; 
Population: 1,021,000; 
Rate of children receiving diagnosis per 1,000 population: 1.68. 

State: Louisiana; 

2000: 
Autistic disorders: 630; 
Population: 1,220,000; 
Rate of children receiving diagnosis per 1,000 population: 0.52; 
2001: 
Autistic disorders: 712; 
Population: 1,201,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2002: 
Autistic disorders: 727; 
Population: 1,186,000; 
Rate of children receiving diagnosis per 1,000 population: 0.61; 
2003: 
Autistic disorders: 768; 
Population: 1,178,000; 
Rate of children receiving diagnosis per 1,000 population: 0.65; 
2004: 
Autistic disorders: 863; 
Population: 1,165,000; 
Rate of children receiving diagnosis per 1,000 population: 0.74; 
2005: 
Autistic disorders: 841; 
Population: 1,148,000; 
Rate of children receiving diagnosis per 1,000 population: 0.73; 
2006: 
Autistic disorders: 884; 
Population: 1,090,000; 
Rate of children receiving diagnosis per 1,000 population: 0.81; 
2007: 
Autistic disorders: 994; 
Population: 1,080,000; 
Rate of children receiving diagnosis per 1,000 population: 0.92; 
2008: 
Autistic disorders: 1,079; 
Population: 1,108,000; 
Rate of children receiving diagnosis per 1,000 population: 0.97; 
2009: 
Autistic disorders: 1,251; 
Population: 1,123,000; 
Rate of children receiving diagnosis per 1,000 population: 1.11; 
2010: 
Autistic disorders: 1,416; 
Population: 1,118,000; 
Rate of children receiving diagnosis per 1,000 population: 1.27; 
2011: 
Autistic disorders: 1,620; 
Population: 1,118,000; 
Rate of children receiving diagnosis per 1,000 population: 1.45. 

State: Maine; 

2000: 
Autistic disorders: 231; 
Population: 301,000; 
Rate of children receiving diagnosis per 1,000 population: 0.77; 
2001: 
Autistic disorders: 277; 
Population: 286,000; 
Rate of children receiving diagnosis per 1,000 population: 0.97; 
2002: 
Autistic disorders: 263; 
Population: 279,000; 
Rate of children receiving diagnosis per 1,000 population: 0.94; 
2003: 
Autistic disorders: 313; 
Population: 287,000; 
Rate of children receiving diagnosis per 1,000 population: 1.09; 
2004: 
Autistic disorders: 368; 
Population: 282,000; 
Rate of children receiving diagnosis per 1,000 population: 1.30; 
2005: 
Autistic disorders: 463; 
Population: 277,000; 
Rate of children receiving diagnosis per 1,000 population: 1.67; 
2006: 
Autistic disorders: 536; 
Population: 281,000; 
Rate of children receiving diagnosis per 1,000 population: 1.91; 
2007: 
Autistic disorders: 687; 
Population: 279,000; 
Rate of children receiving diagnosis per 1,000 population: 2.46; 
2008: 
Autistic disorders: 775; 
Population: 275,000; 
Rate of children receiving diagnosis per 1,000 population: 2.82; 
2009: 
Autistic disorders: 911; 
Population: 271,000; 
Rate of children receiving diagnosis per 1,000 population: 3.36; 
2010: 
Autistic disorders: 990; 
Population: 275,000; 
Rate of children receiving diagnosis per 1,000 population: 3.61; 
2011: 
Autistic disorders: 1,113; 
Population: 269,000; 
Rate of children receiving diagnosis per 1,000 population: 4.13. 

State: Maryland; 

2000: 
Autistic disorders: 448; 
Population: 1,356,000; 
Rate of children receiving diagnosis per 1,000 population: 0.33; 
2001: 
Autistic disorders: 478; 
Population: 1,368,000; 
Rate of children receiving diagnosis per 1,000 population: 0.35; 
2002: 
Autistic disorders: 476; 
Population: 1,380,000; 
Rate of children receiving diagnosis per 1,000 population: 0.34; 
2003: 
Autistic disorders: 498; 
Population: 1,378,000; 
Rate of children receiving diagnosis per 1,000 population: 0.36; 
2004: 
Autistic disorders: 593; 
Population: 1,395,000; 
Rate of children receiving diagnosis per 1,000 population: 0.43; 
2005: 
Autistic disorders: 654; 
Population: 1,403,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2006: 
Autistic disorders: 748; 
Population: 1,361,000; 
Rate of children receiving diagnosis per 1,000 population: 0.55; 
2007: 
Autistic disorders: 825; 
Population: 1,359,000; 
Rate of children receiving diagnosis per 1,000 population: 0.61; 
2008: 
Autistic disorders: 879; 
Population: 1,341,000; 
Rate of children receiving diagnosis per 1,000 population: 0.66; 
2009: 
Autistic disorders: 1,029; 
Population: 1,352,000; 
Rate of children receiving diagnosis per 1,000 population: 0.76; 
2010: 
Autistic disorders: 1,242; 
Population: 1,353,000; 
Rate of children receiving diagnosis per 1,000 population: 0.92; 
2011: 
Autistic disorders: 1,457; 
Population: 1,347,000; 
Rate of children receiving diagnosis per 1,000 population: 1.08. 

State: Massachusetts; 

2000: 
Autistic disorders: 777; 
Population: 1,500,000; 
Rate of children receiving diagnosis per 1,000 population: 0.52; 
2001: 
Autistic disorders: 866; 
Population: 1,473,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2002: 
Autistic disorders: 844; 
Population: 1,463,000; 
Rate of children receiving diagnosis per 1,000 population: 0.58; 
2003: 
Autistic disorders: 973; 
Population: 1,487,000; 
Rate of children receiving diagnosis per 1,000 population: 0.65; 
2004: 
Autistic disorders: 1,128; 
Population: 1,464,000; 
Rate of children receiving diagnosis per 1,000 population: 0.77; 
2005: 
Autistic disorders: 1,256; 
Population: 1,458,000; 
Rate of children receiving diagnosis per 1,000 population: 0.86; 
2006: 
Autistic disorders: 1,457; 
Population: 1,449,000; 
Rate of children receiving diagnosis per 1,000 population: 1.01; 
2007: 
Autistic disorders: 1,702; 
Population: 1,433,000; 
Rate of children receiving diagnosis per 1,000 population: 1.19; 
2008: 
Autistic disorders: 1,888; 
Population: 1,427,000; 
Rate of children receiving diagnosis per 1,000 population: 1.32; 
2009: 
Autistic disorders: 2,131; 
Population: 1,433,000; 
Rate of children receiving diagnosis per 1,000 population: 1.49; 
2010: 
Autistic disorders: 2,484; 
Population: 1,419,000; 
Rate of children receiving diagnosis per 1,000 population: 1.75; 
2011: 
Autistic disorders: 2,858; 
Population: 1,405,000; 
Rate of children receiving diagnosis per 1,000 population: 2.03. 

State: Michigan; 

2000: 
Autistic disorders: 958; 
Population: 2,596,000; 
Rate of children receiving diagnosis per 1,000 population: 0.37; 
2001: 
Autistic disorders: 1,094; 
Population: 2,573,000; 
Rate of children receiving diagnosis per 1,000 population: 0.43; 
2002: 
Autistic disorders: 1,107; 
Population: 2,570,000; 
Rate of children receiving diagnosis per 1,000 population: 0.43; 
2003: 
Autistic disorders: 1,283; 
Population: 2,539,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2004: 
Autistic disorders: 1,454; 
Population: 2,533,000; 
Rate of children receiving diagnosis per 1,000 population: 0.57; 
2005: 
Autistic disorders: 1,673; 
Population: 2,524,000; 
Rate of children receiving diagnosis per 1,000 population: 0.66; 
2006: 
Autistic disorders: 1,887; 
Population: 2,478,000; 
Rate of children receiving diagnosis per 1,000 population: 0.76; 
2007: 
Autistic disorders: 2,109; 
Population: 2,447,000; 
Rate of children receiving diagnosis per 1,000 population: 0.86; 
2008: 
Autistic disorders: 2,310; 
Population: 2,390,000; 
Rate of children receiving diagnosis per 1,000 population: 0.97; 
2009: 
Autistic disorders: 2,593; 
Population: 2,350,000; 
Rate of children receiving diagnosis per 1,000 population: 1.10; 
2010: 
Autistic disorders: 2,850; 
Population: 2,344,000; 
Rate of children receiving diagnosis per 1,000 population: 1.22; 
2011: 
Autistic disorders: 3,189; 
Population: 2,296,000; 
Rate of children receiving diagnosis per 1,000 population: 1.39. 

State: Minnesota; 

2000: 
Autistic disorders: 525; 
Population: 1,287,000; 
Rate of children receiving diagnosis per 1,000 population: 0.41; 
2001: 
Autistic disorders: 620; 
Population: 1,264,000; 
Rate of children receiving diagnosis per 1,000 population: 0.49; 
2002: 
Autistic disorders: 602; 
Population: 1,252,000; 
Rate of children receiving diagnosis per 1,000 population: 0.48; 
2003: 
Autistic disorders: 682; 
Population: 1,249,000; 
Rate of children receiving diagnosis per 1,000 population: 0.55; 
2004: 
Autistic disorders: 770; 
Population: 1,240,000; 
Rate of children receiving diagnosis per 1,000 population: 0.62; 
2005: 
Autistic disorders: 871; 
Population: 1,230,000; 
Rate of children receiving diagnosis per 1,000 population: 0.71; 
2006: 
Autistic disorders: 980; 
Population: 1,257,000; 
Rate of children receiving diagnosis per 1,000 population: 0.78; 
2007: 
Autistic disorders: 1,092; 
Population: 1,260,000; 
Rate of children receiving diagnosis per 1,000 population: 0.87; 
2008: 
Autistic disorders: 1,175; 
Population: 1,255,000; 
Rate of children receiving diagnosis per 1,000 population: 0.94; 
2009: 
Autistic disorders: 1,275; 
Population: 1,261,000; 
Rate of children receiving diagnosis per 1,000 population: 1.01; 
2010: 
Autistic disorders: 1,428; 
Population: 1,284,000; 
Rate of children receiving diagnosis per 1,000 population: 1.11; 
2011: 
Autistic disorders: 1,538; 
Population: 1,278,000; 
Rate of children receiving diagnosis per 1,000 population: 1.20. 

State: Mississippi; 

2000: 
Autistic disorders: 259; 
Population: 775,000; 
Rate of children receiving diagnosis per 1,000 population: 0.33; 
2001: 
Autistic disorders: 295; 
Population: 765,000; 
Rate of children receiving diagnosis per 1,000 population: 0.39; 
2002: 
Autistic disorders: 250; 
Population: 761,000; 
Rate of children receiving diagnosis per 1,000 population: 0.33; 
2003: 
Autistic disorders: 294; 
Population: 761,000; 
Rate of children receiving diagnosis per 1,000 population: 0.39; 
2004: 
Autistic disorders: 293; 
Population: 750,000; 
Rate of children receiving diagnosis per 1,000 population: 0.39; 
2005: 
Autistic disorders: 320; 
Population: 749,000; 
Rate of children receiving diagnosis per 1,000 population: 0.43; 
2006: 
Autistic disorders: 360; 
Population: 759,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2007: 
Autistic disorders: 407; 
Population: 769,000; 
Rate of children receiving diagnosis per 1,000 population: 0.53; 
2008: 
Autistic disorders: 452; 
Population: 767,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2009: 
Autistic disorders: 520; 
Population: 768,000; 
Rate of children receiving diagnosis per 1,000 population: 0.68; 
2010: 
Autistic disorders: 550; 
Population: 756,000; 
Rate of children receiving diagnosis per 1,000 population: 0.73; 
2011: 
Autistic disorders: 627; 
Population: 750,000; 
Rate of children receiving diagnosis per 1,000 population: 0.84. 

State: Missouri; 

2000: 
Autistic disorders: 408; 
Population: 1,428,000; 
Rate of children receiving diagnosis per 1,000 population: 0.29; 
2001: 
Autistic disorders: 485; 
Population: 1,407,000; 
Rate of children receiving diagnosis per 1,000 population: 0.34; 
2002: 
Autistic disorders: 354; 
Population: 1,397,000; 
Rate of children receiving diagnosis per 1,000 population: 0.25; 
2003: 
Autistic disorders: 404; 
Population: 1,407,000; 
Rate of children receiving diagnosis per 1,000 population: 0.29; 
2004: 
Autistic disorders: 533; 
Population: 1,385,000; 
Rate of children receiving diagnosis per 1,000 population: 0.38; 
2005: 
Autistic disorders: 693; 
Population: 1,378,000; 
Rate of children receiving diagnosis per 1,000 population: 0.50; 
2006: 
Autistic disorders: 870; 
Population: 1,417,000; 
Rate of children receiving diagnosis per 1,000 population: 0.61; 
2007: 
Autistic disorders: 1,044; 
Population: 1,425,000; 
Rate of children receiving diagnosis per 1,000 population: 0.73; 
2008: 
Autistic disorders: 1,220; 
Population: 1,421,000; 
Rate of children receiving diagnosis per 1,000 population: 0.86; 
2009: 
Autistic disorders: 1,433; 
Population: 1,431,000; 
Rate of children receiving diagnosis per 1,000 population: 1.00; 
2010: 
Autistic disorders: 1,723; 
Population: 1,425,000; 
Rate of children receiving diagnosis per 1,000 population: 1.21; 
2011: 
Autistic disorders: 1,950; 
Population: 1,412,000; 
Rate of children receiving diagnosis per 1,000 population: 1.38. 

State: Montana; 

2000: 
Autistic disorders: 77; 
Population: 230,000; 
Rate of children receiving diagnosis per 1,000 population: 0.33; 
2001: 
Autistic disorders: 99; 
Population: 220,000; 
Rate of children receiving diagnosis per 1,000 population: 0.45; 
2002: 
Autistic disorders: 110; 
Population: 216,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2003: 
Autistic disorders: 111; 
Population: 216,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2004: 
Autistic disorders: 114; 
Population: 208,000; 
Rate of children receiving diagnosis per 1,000 population: 0.55; 
2005: 
Autistic disorders: 133; 
Population: 205,000; 
Rate of children receiving diagnosis per 1,000 population: 0.65; 
2006: 
Autistic disorders: 136; 
Population: 218,000; 
Rate of children receiving diagnosis per 1,000 population: 0.62; 
2007: 
Autistic disorders: 175; 
Population: 219,000; 
Rate of children receiving diagnosis per 1,000 population: 0.80; 
2008: 
Autistic disorders: 198; 
Population: 220,000; 
Rate of children receiving diagnosis per 1,000 population: 0.90; 
2009: 
Autistic disorders: 216; 
Population: 220,000; 
Rate of children receiving diagnosis per 1,000 population: 0.98; 
2010: 
Autistic disorders: 239; 
Population: 224,000; 
Rate of children receiving diagnosis per 1,000 population: 1.07; 
2011: 
Autistic disorders: 257; 
Population: 222,000; 
Rate of children receiving diagnosis per 1,000 population: 1.16. 

State: Nebraska; 

2000: 
Autistic disorders: 115; 
Population: 450,000; 
Rate of children receiving diagnosis per 1,000 population: 0.26; 
2001: 
Autistic disorders: 142; 
Population: 443,000; 
Rate of children receiving diagnosis per 1,000 population: 0.32; 
2002: 
Autistic disorders: 152; 
Population: 439,000; 
Rate of children receiving diagnosis per 1,000 population: 0.35; 
2003: 
Autistic disorders: 163; 
Population: 441,000; 
Rate of children receiving diagnosis per 1,000 population: 0.37; 
2004: 
Autistic disorders: 181; 
Population: 435,000; 
Rate of children receiving diagnosis per 1,000 population: 0.42; 
2005: 
Autistic disorders: 205; 
Population: 432,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2006: 
Autistic disorders: 211; 
Population: 445,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2007: 
Autistic disorders: 241; 
Population: 446,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2008: 
Autistic disorders: 274; 
Population: 447,000; 
Rate of children receiving diagnosis per 1,000 population: 0.61; 
2009: 
Autistic disorders: 334; 
Population: 452,000; 
Rate of children receiving diagnosis per 1,000 population: 0.74; 
2010: 
Autistic disorders: 368; 
Population: 459,000; 
Rate of children receiving diagnosis per 1,000 population: 0.80; 
2011: 
Autistic disorders: 391; 
Population: 460,000; 
Rate of children receiving diagnosis per 1,000 population: 0.85. 

State: Nevada; 

2000: 
Autistic disorders: 169; 
Population: 512,000; 
Rate of children receiving diagnosis per 1,000 population: 0.33; 
2001: 
Autistic disorders: 211; 
Population: 551,000; 
Rate of children receiving diagnosis per 1,000 population: 0.38; 
2002: 
Autistic disorders: 240; 
Population: 573,000; 
Rate of children receiving diagnosis per 1,000 population: 0.42; 
2003: 
Autistic disorders: 275; 
Population: 581,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2004: 
Autistic disorders: 327; 
Population: 604,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2005: 
Autistic disorders: 363; 
Population: 621,000; 
Rate of children receiving diagnosis per 1,000 population: 0.58; 
2006: 
Autistic disorders: 412; 
Population: 635,000; 
Rate of children receiving diagnosis per 1,000 population: 0.65; 
2007: 
Autistic disorders: 447; 
Population: 660,000; 
Rate of children receiving diagnosis per 1,000 population: 0.68; 
2008: 
Autistic disorders: 483; 
Population: 668,000; 
Rate of children receiving diagnosis per 1,000 population: 0.72; 
2009: 
Autistic disorders: 566; 
Population: 681,000; 
Rate of children receiving diagnosis per 1,000 population: 0.83; 
2010: 
Autistic disorders: 670; 
Population: 665,000; 
Rate of children receiving diagnosis per 1,000 population: 1.01; 
2011: 
Autistic disorders: 745; 
Population: 664,000; 
Rate of children receiving diagnosis per 1,000 population: 1.12. 

State: New Hampshire; 

2000: 
Autistic disorders: 108; 
Population: 310,000; 
Rate of children receiving diagnosis per 1,000 population: 0.35; 
2001: 
Autistic disorders: 130; 
Population: 308,000; 
Rate of children receiving diagnosis per 1,000 population: 0.42; 
2002: 
Autistic disorders: 135; 
Population: 308,000; 
Rate of children receiving diagnosis per 1,000 population: 0.44; 
2003: 
Autistic disorders: 143; 
Population: 306,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2004: 
Autistic disorders: 164; 
Population: 305,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2005: 
Autistic disorders: 184; 
Population: 303,000; 
Rate of children receiving diagnosis per 1,000 population: 0.61; 
2006: 
Autistic disorders: 223; 
Population: 298,000; 
Rate of children receiving diagnosis per 1,000 population: 0.75; 
2007: 
Autistic disorders: 254; 
Population: 298,000; 
Rate of children receiving diagnosis per 1,000 population: 0.85; 
2008: 
Autistic disorders: 287; 
Population: 293,000; 
Rate of children receiving diagnosis per 1,000 population: 0.98; 
2009: 
Autistic disorders: 332; 
Population: 289,000; 
Rate of children receiving diagnosis per 1,000 population: 1.15; 
2010: 
Autistic disorders: 365; 
Population: 287,000; 
Rate of children receiving diagnosis per 1,000 population: 1.27; 
2011: 
Autistic disorders: 400; 
Population: 280,000; 
Rate of children receiving diagnosis per 1,000 population: 1.43. 

State: New Jersey; 

2000: 
Autistic disorders: 987; 
Population: 2,088,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2001: 
Autistic disorders: 1,085; 
Population: 2,109,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2002: 
Autistic disorders: 1,128; 
Population: 2,127,000; 
Rate of children receiving diagnosis per 1,000 population: 0.53; 
2003: 
Autistic disorders: 1,250; 
Population: 2,132,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2004: 
Autistic disorders: 1,344; 
Population: 2,156,000; 
Rate of children receiving diagnosis per 1,000 population: 0.62; 
2005: 
Autistic disorders: 1,506; 
Population: 2,162,000; 
Rate of children receiving diagnosis per 1,000 population: 0.70; 
2006: 
Autistic disorders: 1,690; 
Population: 2,089,000; 
Rate of children receiving diagnosis per 1,000 population: 0.81; 
2007: 
Autistic disorders: 1,930; 
Population: 2,064,000; 
Rate of children receiving diagnosis per 1,000 population: 0.94; 
2008: 
Autistic disorders: 2,143; 
Population: 2,048,000; 
Rate of children receiving diagnosis per 1,000 population: 1.05; 
2009: 
Autistic disorders: 2,313; 
Population: 2,046,000; 
Rate of children receiving diagnosis per 1,000 population: 1.13; 
2010: 
Autistic disorders: 2,647; 
Population: 2,065,000; 
Rate of children receiving diagnosis per 1,000 population: 1.28; 
2011: 
Autistic disorders: 3,027; 
Population: 2,043,000; 
Rate of children receiving diagnosis per 1,000 population: 1.48. 

State: New Mexico; 
2000: 
Autistic disorders: 130; 
Population: 509,000; 
Rate of children receiving diagnosis per 1,000 population: 0.26; 
2001: 
Autistic disorders: 140; 
Population: 501,000; 
Rate of children receiving diagnosis per 1,000 population: 0.28; 
2002: 
Autistic disorders: 134; 
Population: 501,000; 
Rate of children receiving diagnosis per 1,000 population: 0.27; 
2003: 
Autistic disorders: 152; 
Population: 502,000; 
Rate of children receiving diagnosis per 1,000 population: 0.30; 
2004: 
Autistic disorders: 187; 
Population: 492,000; 
Rate of children receiving diagnosis per 1,000 population: 0.38; 
2005: 
Autistic disorders: 200; 
Population: 489,000; 
Rate of children receiving diagnosis per 1,000 population: 0.41; 
2006: 
Autistic disorders: 225; 
Population: 509,000; 
Rate of children receiving diagnosis per 1,000 population: 0.44; 
2007: 
Autistic disorders: 280; 
Population: 500,000; 
Rate of children receiving diagnosis per 1,000 population: 0.56; 
2008: 
Autistic disorders: 302; 
Population: 502,000; 
Rate of children receiving diagnosis per 1,000 population: 0.60; 
2009: 
Autistic disorders: 348; 
Population: 510,000; 
Rate of children receiving diagnosis per 1,000 population: 0.68; 
2010: 
Autistic disorders: 391; 
Population: 519,000; 
Rate of children receiving diagnosis per 1,000 population: 0.75; 
2011: 
Autistic disorders: 480; 
Population: 519,000; 
Rate of children receiving diagnosis per 1,000 population: 0.92. 

State: New York; 

2000: 
Autistic disorders: 2,717; 
Population: 4,690,000; 
Rate of children receiving diagnosis per 1,000 population: 0.58; 
2001: 
Autistic disorders: 3,073; 
Population: 4,634,000; 
Rate of children receiving diagnosis per 1,000 population: 0.66; 
2002: 
Autistic disorders: 3,058; 
Population: 4,613,000; 
Rate of children receiving diagnosis per 1,000 population: 0.66; 
2003: 
Autistic disorders: 3,344; 
Population: 4,533,000; 
Rate of children receiving diagnosis per 1,000 population: 0.74; 
2004: 
Autistic disorders: 3,704; 
Population: 4,572,000; 
Rate of children receiving diagnosis per 1,000 population: 0.81; 
2005: 
Autistic disorders: 4,335; 
Population: 4,546,000; 
Rate of children receiving diagnosis per 1,000 population: 0.95; 
2006: 
Autistic disorders: 4,887; 
Population: 4,514,000; 
Rate of children receiving diagnosis per 1,000 population: 1.08; 
2007: 
Autistic disorders: 5,448; 
Population: 4,413,000; 
Rate of children receiving diagnosis per 1,000 population: 1.23; 
2008: 
Autistic disorders: 6,157; 
Population: 4,408,000; 
Rate of children receiving diagnosis per 1,000 population: 1.40; 
2009: 
Autistic disorders: 7,144; 
Population: 4,424,000; 
Rate of children receiving diagnosis per 1,000 population: 1.61; 
2010: 
Autistic disorders: 8,301; 
Population: 4,325,000; 
Rate of children receiving diagnosis per 1,000 population: 1.92; 
2011: 
Autistic disorders: 9,434; 
Population: 4,286,000; 
Rate of children receiving diagnosis per 1,000 population: 2.20. 

State: North Carolina; 

2000: 
Autistic disorders: 847; 
Population: 1,964,000; 
Rate of children receiving diagnosis per 1,000 population: 0.43; 
2001: 
Autistic disorders: 968; 
Population: 2,028,000; 
Rate of children receiving diagnosis per 1,000 population: 0.48; 
2002: 
Autistic disorders: 1,056; 
Population: 2,069,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2003: 
Autistic disorders: 1,195; 
Population: 2,087,000; 
Rate of children receiving diagnosis per 1,000 population: 0.57; 
2004: 
Autistic disorders: 1,355; 
Population: 2,118,000; 
Rate of children receiving diagnosis per 1,000 population: 0.64; 
2005: 
Autistic disorders: 1,531; 
Population: 2,141,000; 
Rate of children receiving diagnosis per 1,000 population: 0.72; 
2006: 
Autistic disorders: 1,739; 
Population: 2,155,000; 
Rate of children receiving diagnosis per 1,000 population: 0.81; 
2007: 
Autistic disorders: 1,969; 
Population: 2,218,000; 
Rate of children receiving diagnosis per 1,000 population: 0.89; 
2008: 
Autistic disorders: 2,177; 
Population: 2,244,000; 
Rate of children receiving diagnosis per 1,000 population: 0.97; 
2009: 
Autistic disorders: 2,507; 
Population: 2,278,000; 
Rate of children receiving diagnosis per 1,000 population: 1.10; 
2010: 
Autistic disorders: 2,786; 
Population: 2,282,000; 
Rate of children receiving diagnosis per 1,000 population: 1.22; 
2011: 
Autistic disorders: 3,090; 
Population: 2,288,000; 
Rate of children receiving diagnosis per 1,000 population: 1.35. 

State: North Dakota; 

2000: 
Autistic disorders: 48; 
Population: 161,000; 
Rate of children receiving diagnosis per 1,000 population: 0.30; 
2001: 
Autistic disorders: 59; 
Population: 151,000; 
Rate of children receiving diagnosis per 1,000 population: 0.39; 
2002: 
Autistic disorders: 69; 
Population: 147,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2003: 
Autistic disorders: 69; 
Population: 147,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2004: 
Autistic disorders: 76; 
Population: 139,000; 
Rate of children receiving diagnosis per 1,000 population: 0.55; 
2005: 
Autistic disorders: 78; 
Population: 137,000; 
Rate of children receiving diagnosis per 1,000 population: 0.57; 
2006: 
Autistic disorders: 98; 
Population: 145,000; 
Rate of children receiving diagnosis per 1,000 population: 0.68; 
2007: 
Autistic disorders: 104; 
Population: 143,000; 
Rate of children receiving diagnosis per 1,000 population: 0.73; 
2008: 
Autistic disorders: 121; 
Population: 143,000; 
Rate of children receiving diagnosis per 1,000 population: 0.85; 
2009: 
Autistic disorders: 115; 
Population: 144,000; 
Rate of children receiving diagnosis per 1,000 population: 0.80; 
2010: 
Autistic disorders: 126; 
Population: 150,000; 
Rate of children receiving diagnosis per 1,000 population: 0.84; 
2011: 
Autistic disorders: 140; 
Population: 151,000; 
Rate of children receiving diagnosis per 1,000 population: 0.93. 

State: Ohio; 

2000: 
Autistic disorders: 1,082; 
Population: 2,888,000; 
Rate of children receiving diagnosis per 1,000 population: 0.37; 
2001: 
Autistic disorders: 1,272; 
Population: 2,877,000; 
Rate of children receiving diagnosis per 1,000 population: 0.44; 
2002: 
Autistic disorders: 1,299; 
Population: 2,880,000; 
Rate of children receiving diagnosis per 1,000 population: 0.45; 
2003: 
Autistic disorders: 1,420; 
Population: 2,815,000; 
Rate of children receiving diagnosis per 1,000 population: 0.50; 
2004: 
Autistic disorders: 1,650; 
Population: 2,779,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2005: 
Autistic disorders: 1,869; 
Population: 2,759,000; 
Rate of children receiving diagnosis per 1,000 population: 0.68; 
2006: 
Autistic disorders: 2,089; 
Population: 2,770,000; 
Rate of children receiving diagnosis per 1,000 population: 0.75; 
2007: 
Autistic disorders: 2,384; 
Population: 2,752,000; 
Rate of children receiving diagnosis per 1,000 population: 0.87; 
2008: 
Autistic disorders: 2,684; 
Population: 2,730,000; 
Rate of children receiving diagnosis per 1,000 population: 0.98; 
2009: 
Autistic disorders: 2,985; 
Population: 2,714,000; 
Rate of children receiving diagnosis per 1,000 population: 1.10; 
2010: 
Autistic disorders: 3,240; 
Population: 2,731,000; 
Rate of children receiving diagnosis per 1,000 population: 1.19; 
2011: 
Autistic disorders: 3,571; 
Population: 2,693,000; 
Rate of children receiving diagnosis per 1,000 population: 1.33. 

State: Oklahoma; 

2000: 
Autistic disorders: 260; 
Population: 892,000; 
Rate of children receiving diagnosis per 1,000 population: 0.29; 
2001: 
Autistic disorders: 299; 
Population: 878,000; 
Rate of children receiving diagnosis per 1,000 population: 0.34; 
2002: 
Autistic disorders: 275; 
Population: 874,000; 
Rate of children receiving diagnosis per 1,000 population: 0.31; 
2003: 
Autistic disorders: 325; 
Population: 878,000; 
Rate of children receiving diagnosis per 1,000 population: 0.37; 
2004: 
Autistic disorders: 395; 
Population: 860,000; 
Rate of children receiving diagnosis per 1,000 population: 0.46; 
2005: 
Autistic disorders: 475; 
Population: 853,000; 
Rate of children receiving diagnosis per 1,000 population: 0.56; 
2006: 
Autistic disorders: 593; 
Population: 894,000; 
Rate of children receiving diagnosis per 1,000 population: 0.66; 
2007: 
Autistic disorders: 724; 
Population: 900,000; 
Rate of children receiving diagnosis per 1,000 population: 0.80; 
2008: 
Autistic disorders: 888; 
Population: 906,000; 
Rate of children receiving diagnosis per 1,000 population: 0.98; 
2009: 
Autistic disorders: 1,050; 
Population: 919,000; 
Rate of children receiving diagnosis per 1,000 population: 1.14; 
2010: 
Autistic disorders: 1,217; 
Population: 930,000; 
Rate of children receiving diagnosis per 1,000 population: 1.31; 
2011: 
Autistic disorders: 1,363; 
Population: 936,000; 
Rate of children receiving diagnosis per 1,000 population: 1.46. 

State: Oregon; 

2000: 
Autistic disorders: 497; 
Population: 847,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2001: 
Autistic disorders: 582; 
Population: 853,000; 
Rate of children receiving diagnosis per 1,000 population: 0.68; 
2002: 
Autistic disorders: 614; 
Population: 855,000; 
Rate of children receiving diagnosis per 1,000 population: 0.72; 
2003: 
Autistic disorders: 680; 
Population: 849,000; 
Rate of children receiving diagnosis per 1,000 population: 0.80; 
2004: 
Autistic disorders: 800; 
Population: 852,000; 
Rate of children receiving diagnosis per 1,000 population: 0.94; 
2005: 
Autistic disorders: 869; 
Population: 850,000; 
Rate of children receiving diagnosis per 1,000 population: 1.02; 
2006: 
Autistic disorders: 972; 
Population: 856,000; 
Rate of children receiving diagnosis per 1,000 population: 1.14; 
2007: 
Autistic disorders: 1,054; 
Population: 863,000; 
Rate of children receiving diagnosis per 1,000 population: 1.22; 
2008: 
Autistic disorders: 1,154; 
Population: 868,000; 
Rate of children receiving diagnosis per 1,000 population: 1.33; 
2009: 
Autistic disorders: 1,290; 
Population: 873,000; 
Rate of children receiving diagnosis per 1,000 population: 1.48; 
2010: 
Autistic disorders: 1,449; 
Population: 866,000; 
Rate of children receiving diagnosis per 1,000 population: 1.67; 
2011: 
Autistic disorders: 1,538; 
Population: 864,000; 
Rate of children receiving diagnosis per 1,000 population: 1.78. 

State: Pennsylvania; 

2000: 
Autistic disorders: 1,453; 
Population: 2,922,000; 
Rate of children receiving diagnosis per 1,000 population: 0.50; 
2001: 
Autistic disorders: 1,708; 
Population: 2,880,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2002: 
Autistic disorders: 1,822; 
Population: 2,863,000; 
Rate of children receiving diagnosis per 1,000 population: 0.64; 
2003: 
Autistic disorders: 2,026; 
Population: 2,831,000; 
Rate of children receiving diagnosis per 1,000 population: 0.72; 
2004: 
Autistic disorders: 2,306; 
Population: 2,837,000; 
Rate of children receiving diagnosis per 1,000 population: 0.81; 
2005: 
Autistic disorders: 2,748; 
Population: 2,817,000; 
Rate of children receiving diagnosis per 1,000 population: 0.98; 
2006: 
Autistic disorders: 3,212; 
Population: 2,805,000; 
Rate of children receiving diagnosis per 1,000 population: 1.15; 
2007: 
Autistic disorders: 3,872; 
Population: 2,787,000; 
Rate of children receiving diagnosis per 1,000 population: 1.39; 
2008: 
Autistic disorders: 4,461; 
Population: 2,762,000; 
Rate of children receiving diagnosis per 1,000 population: 1.62; 
2009: 
Autistic disorders: 5,144; 
Population: 2,775,000; 
Rate of children receiving diagnosis per 1,000 population: 1.85; 
2010: 
Autistic disorders: 5,888; 
Population: 2,792,000; 
Rate of children receiving diagnosis per 1,000 population: 2.11; 
2011: 
Autistic disorders: 6,799; 
Population: 2,761,000; 
Rate of children receiving diagnosis per 1,000 population: 2.46. 

State: Rhode Island; 

2000: 
Autistic disorders: 192; 
Population: 248,000; 
Rate of children receiving diagnosis per 1,000 population: 0.77; 
2001: 
Autistic disorders: 199; 
Population: 243,000; 
Rate of children receiving diagnosis per 1,000 population: 0.82; 
2002: 
Autistic disorders: 209; 
Population: 239,000; 
Rate of children receiving diagnosis per 1,000 population: 0.87; 
2003: 
Autistic disorders: 228; 
Population: 244,000; 
Rate of children receiving diagnosis per 1,000 population: 0.93; 
2004: 
Autistic disorders: 251; 
Population: 244,000; 
Rate of children receiving diagnosis per 1,000 population: 1.03; 
2005: 
Autistic disorders: 283; 
Population: 245,000; 
Rate of children receiving diagnosis per 1,000 population: 1.15; 
2006: 
Autistic disorders: 309; 
Population: 237,000; 
Rate of children receiving diagnosis per 1,000 population: 1.30; 
2007: 
Autistic disorders: 336; 
Population: 233,000; 
Rate of children receiving diagnosis per 1,000 population: 1.44; 
2008: 
Autistic disorders: 355; 
Population: 229,000; 
Rate of children receiving diagnosis per 1,000 population: 1.55; 
2009: 
Autistic disorders: 422; 
Population: 227,000; 
Rate of children receiving diagnosis per 1,000 population: 1.86; 
2010: 
Autistic disorders: 478; 
Population: 224,000; 
Rate of children receiving diagnosis per 1,000 population: 2.13; 
2011: 
Autistic disorders: 524; 
Population: 220,000; 
Rate of children receiving diagnosis per 1,000 population: 2.39. 

State: South Carolina; 

2000: 
Autistic disorders: 333; 
Population: 1,010,000; 
Rate of children receiving diagnosis per 1,000 population: 0.33; 
2001: 
Autistic disorders: 367; 
Population: 989,000; 
Rate of children receiving diagnosis per 1,000 population: 0.37; 
2002: 
Autistic disorders: 374; 
Population: 979,000; 
Rate of children receiving diagnosis per 1,000 population: 0.38; 
2003: 
Autistic disorders: 429; 
Population: 1,024,000; 
Rate of children receiving diagnosis per 1,000 population: 0.42; 
2004: 
Autistic disorders: 477; 
Population: 1,025,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2005: 
Autistic disorders: 579; 
Population: 1,027,000; 
Rate of children receiving diagnosis per 1,000 population: 0.56; 
2006: 
Autistic disorders: 688; 
Population: 1,040,000; 
Rate of children receiving diagnosis per 1,000 population: 0.66; 
2007: 
Autistic disorders: 768; 
Population: 1,060,000; 
Rate of children receiving diagnosis per 1,000 population: 0.72; 
2008: 
Autistic disorders: 865; 
Population: 1,066,000; 
Rate of children receiving diagnosis per 1,000 population: 0.81; 
2009: 
Autistic disorders: 974; 
Population: 1,081,000; 
Rate of children receiving diagnosis per 1,000 population: 0.90; 
2010: 
Autistic disorders: 1,133; 
Population: 1,080,000; 
Rate of children receiving diagnosis per 1,000 population: 1.05; 
2011: 
Autistic disorders: 1,282; 
Population: 1,081,000; 
Rate of children receiving diagnosis per 1,000 population: 1.19. 

State: South Dakota; 

2000: 
Autistic disorders: 48; 
Population: 203,000; 
Rate of children receiving diagnosis per 1,000 population: 0.24; 
2001: 
Autistic disorders: 56; 
Population: 198,000; 
Rate of children receiving diagnosis per 1,000 population: 0.28; 
2002: 
Autistic disorders: 49; 
Population: 196,000; 
Rate of children receiving diagnosis per 1,000 population: 0.25; 
2003: 
Autistic disorders: 50; 
Population: 195,000; 
Rate of children receiving diagnosis per 1,000 population: 0.26; 
2004: 
Autistic disorders: 47; 
Population: 191,000; 
Rate of children receiving diagnosis per 1,000 population: 0.25; 
2005: 
Autistic disorders: 52; 
Population: 188,000; 
Rate of children receiving diagnosis per 1,000 population: 0.28; 
2006: 
Autistic disorders: 59; 
Population: 195,000; 
Rate of children receiving diagnosis per 1,000 population: 0.30; 
2007: 
Autistic disorders: 68; 
Population: 197,000; 
Rate of children receiving diagnosis per 1,000 population: 0.35; 
2008: 
Autistic disorders: 79; 
Population: 198,000; 
Rate of children receiving diagnosis per 1,000 population: 0.40; 
2009: 
Autistic disorders: 91; 
Population: 200,000; 
Rate of children receiving diagnosis per 1,000 population: 0.46; 
2010: 
Autistic disorders: 111; 
Population: 203,000; 
Rate of children receiving diagnosis per 1,000 population: 0.55; 
2011: 
Autistic disorders: 126; 
Population: 203,000; 
Rate of children receiving diagnosis per 1,000 population: 0.62. 

State: Tennessee; 

2000: 
Autistic disorders: 469; 
Population: 1,399,000; 
Rate of children receiving diagnosis per 1,000 population: 0.34; 
2001: 
Autistic disorders: 504; 
Population: 1,398,000; 
Rate of children receiving diagnosis per 1,000 population: 0.36; 
2002: 
Autistic disorders: 527; 
Population: 1,405,000; 
Rate of children receiving diagnosis per 1,000 population: 0.38; 
2003: 
Autistic disorders: 562; 
Population: 1,394,000; 
Rate of children receiving diagnosis per 1,000 population: 0.40; 
2004: 
Autistic disorders: 624; 
Population: 1,391,000; 
Rate of children receiving diagnosis per 1,000 population: 0.45; 
2005: 
Autistic disorders: 696; 
Population: 1,391,000; 
Rate of children receiving diagnosis per 1,000 population: 0.50; 
2006: 
Autistic disorders: 781; 
Population: 1,443,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2007: 
Autistic disorders: 836; 
Population: 1,471,000; 
Rate of children receiving diagnosis per 1,000 population: 0.57; 
2008: 
Autistic disorders: 875; 
Population: 1,479,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2009: 
Autistic disorders: 967; 
Population: 1,493,000; 
Rate of children receiving diagnosis per 1,000 population: 0.65; 
2010: 
Autistic disorders: 1,127; 
Population: 1,496,000; 
Rate of children receiving diagnosis per 1,000 population: 0.75; 
2011: 
Autistic disorders: 1,403; 
Population: 1,492,000; 
Rate of children receiving diagnosis per 1,000 population: 0.94. 

State: Texas; 

2000: 
Autistic disorders: 1,642; 
Population: 5,887,000; 
Rate of children receiving diagnosis per 1,000 population: 0.28; 
2001: 
Autistic disorders: 1,850; 
Population: 6,028,000; 
Rate of children receiving diagnosis per 1,000 population: 0.31; 
2002: 
Autistic disorders: 1,966; 
Population: 6,102,000; 
Rate of children receiving diagnosis per 1,000 population: 0.32; 
2003: 
Autistic disorders: 2,224; 
Population: 6,240,000; 
Rate of children receiving diagnosis per 1,000 population: 0.36; 
2004: 
Autistic disorders: 2,520; 
Population: 6,267,000; 
Rate of children receiving diagnosis per 1,000 population: 0.40; 
2005: 
Autistic disorders: 2,970; 
Population: 6,326,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2006: 
Autistic disorders: 3,489; 
Population: 6,494,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2007: 
Autistic disorders: 4,165; 
Population: 6,623,000; 
Rate of children receiving diagnosis per 1,000 population: 0.63; 
2008: 
Autistic disorders: 4,813; 
Population: 6,726,000; 
Rate of children receiving diagnosis per 1,000 population: 0.72; 
2009: 
Autistic disorders: 5,643; 
Population: 6,896,000; 
Rate of children receiving diagnosis per 1,000 population: 0.82; 
2010: 
Autistic disorders: 6,387; 
Population: 6,866,000; 
Rate of children receiving diagnosis per 1,000 population: 0.93; 
2011: 
Autistic disorders: 7,360; 
Population: 6,961,000; 
Rate of children receiving diagnosis per 1,000 population: 1.06. 

State: Utah; 

2000: 
Autistic disorders: 205; 
Population: 719,000; 
Rate of children receiving diagnosis per 1,000 population: 0.29; 
2001: 
Autistic disorders: 242; 
Population: 716,000; 
Rate of children receiving diagnosis per 1,000 population: 0.34; 
2002: 
Autistic disorders: 276; 
Population: 713,000; 
Rate of children receiving diagnosis per 1,000 population: 0.39; 
2003: 
Autistic disorders: 302; 
Population: 743,000; 
Rate of children receiving diagnosis per 1,000 population: 0.41; 
2004: 
Autistic disorders: 325; 
Population: 740,000; 
Rate of children receiving diagnosis per 1,000 population: 0.44; 
2005: 
Autistic disorders: 381; 
Population: 743,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2006: 
Autistic disorders: 467; 
Population: 791,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2007: 
Autistic disorders: 508; 
Population: 817,000; 
Rate of children receiving diagnosis per 1,000 population: 0.62; 
2008: 
Autistic disorders: 586; 
Population: 850,000; 
Rate of children receiving diagnosis per 1,000 population: 0.69; 
2009: 
Autistic disorders: 678; 
Population: 869,000; 
Rate of children receiving diagnosis per 1,000 population: 0.78; 
2010: 
Autistic disorders: 797; 
Population: 871,000; 
Rate of children receiving diagnosis per 1,000 population: 0.92; 
2011: 
Autistic disorders: 868; 
Population: 880,000; 
Rate of children receiving diagnosis per 1,000 population: 0.99. 

State: Vermont; 

2000: 
Autistic disorders: 87; 
Population: 148,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2001: 
Autistic disorders: 99; 
Population: 141,000; 
Rate of children receiving diagnosis per 1,000 population: 0.70; 
2002: 
Autistic disorders: 108; 
Population: 140,000; 
Rate of children receiving diagnosis per 1,000 population: 0.77; 
2003: 
Autistic disorders: 133; 
Population: 137,000; 
Rate of children receiving diagnosis per 1,000 population: 0.97; 
2004: 
Autistic disorders: 133; 
Population: 135,000; 
Rate of children receiving diagnosis per 1,000 population: 0.99; 
2005: 
Autistic disorders: 138; 
Population: 133,000; 
Rate of children receiving diagnosis per 1,000 population: 1.04; 
2006: 
Autistic disorders: 180; 
Population: 133,000; 
Rate of children receiving diagnosis per 1,000 population: 1.35; 
2007: 
Autistic disorders: 211; 
Population: 131,000; 
Rate of children receiving diagnosis per 1,000 population: 1.61; 
2008: 
Autistic disorders: 233; 
Population: 129,000; 
Rate of children receiving diagnosis per 1,000 population: 1.81; 
2009: 
Autistic disorders: 259; 
Population: 126,000; 
Rate of children receiving diagnosis per 1,000 population: 2.05; 
2010: 
Autistic disorders: 287; 
Population: 129,000; 
Rate of children receiving diagnosis per 1,000 population: 2.22; 
2011: 
Autistic disorders: 319; 
Population: 126,000; 
Rate of children receiving diagnosis per 1,000 population: 2.53. 

State: Virginia; 

2000: 
Autistic disorders: 729; 
Population: 1,738,000; 
Rate of children receiving diagnosis per 1,000 population: 0.42; 
2001: 
Autistic disorders: 816; 
Population: 1,762,000; 
Rate of children receiving diagnosis per 1,000 population: 0.46; 
2002: 
Autistic disorders: 801; 
Population: 1,779,000; 
Rate of children receiving diagnosis per 1,000 population: 0.45; 
2003: 
Autistic disorders: 934; 
Population: 1,799,000; 
Rate of children receiving diagnosis per 1,000 population: 0.52; 
2004: 
Autistic disorders: 1,069; 
Population: 1,805,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2005: 
Autistic disorders: 1,233; 
Population: 1,825,000; 
Rate of children receiving diagnosis per 1,000 population: 0.68; 
2006: 
Autistic disorders: 1,385; 
Population: 1,807,000; 
Rate of children receiving diagnosis per 1,000 population: 0.77; 
2007: 
Autistic disorders: 1,581; 
Population: 1,826,000; 
Rate of children receiving diagnosis per 1,000 population: 0.87; 
2008: 
Autistic disorders: 1,748; 
Population: 1,823,000; 
Rate of children receiving diagnosis per 1,000 population: 0.96; 
2009: 
Autistic disorders: 1,986; 
Population: 1,847,000; 
Rate of children receiving diagnosis per 1,000 population: 1.08; 
2010: 
Autistic disorders: 2,235; 
Population: 1,854,000; 
Rate of children receiving diagnosis per 1,000 population: 1.21; 
2011: 
Autistic disorders: 2,582; 
Population: 1,854,000; 
Rate of children receiving diagnosis per 1,000 population: 1.39. 

State: Washington; 

2000: 
Autistic disorders: 620; 
Population: 1,514,000; 
Rate of children receiving diagnosis per 1,000 population: 0.41; 
2001: 
Autistic disorders: 739; 
Population: 1,510,000; 
Rate of children receiving diagnosis per 1,000 population: 0.49; 
2002: 
Autistic disorders: 746; 
Population: 1,513,000; 
Rate of children receiving diagnosis per 1,000 population: 0.49; 
2003: 
Autistic disorders: 861; 
Population: 1,497,000; 
Rate of children receiving diagnosis per 1,000 population: 0.58; 
2004: 
Autistic disorders: 987; 
Population: 1,486,000; 
Rate of children receiving diagnosis per 1,000 population: 0.66; 
2005: 
Autistic disorders: 1,144; 
Population: 1,484,000; 
Rate of children receiving diagnosis per 1,000 population: 0.77; 
2006: 
Autistic disorders: 1,288; 
Population: 1,526,000; 
Rate of children receiving diagnosis per 1,000 population: 0.84; 
2007: 
Autistic disorders: 1,431; 
Population: 1,536,000; 
Rate of children receiving diagnosis per 1,000 population: 0.93; 
2008: 
Autistic disorders: 1,525; 
Population: 1,541,000; 
Rate of children receiving diagnosis per 1,000 population: 0.99; 
2009: 
Autistic disorders: 1,817; 
Population: 1,570,000; 
Rate of children receiving diagnosis per 1,000 population: 1.16; 
2010: 
Autistic disorders: 2,063; 
Population: 1,581,000; 
Rate of children receiving diagnosis per 1,000 population: 1.30; 
2011: 
Autistic disorders: 2,250; 
Population: 1,582,000; 
Rate of children receiving diagnosis per 1,000 population: 1.42. 

State: West Virginia; 

2000: 
Autistic disorders: 245; 
Population: 402,000; 
Rate of children receiving diagnosis per 1,000 population: 0.61; 
2001: 
Autistic disorders: 283; 
Population: 394,000; 
Rate of children receiving diagnosis per 1,000 population: 0.72; 
2002: 
Autistic disorders: 289; 
Population: 389,000; 
Rate of children receiving diagnosis per 1,000 population: 0.74; 
2003: 
Autistic disorders: 336; 
Population: 391,000; 
Rate of children receiving diagnosis per 1,000 population: 0.86; 
2004: 
Autistic disorders: 361; 
Population: 385,000; 
Rate of children receiving diagnosis per 1,000 population: 0.94; 
2005: 
Autistic disorders: 438; 
Population: 382,000; 
Rate of children receiving diagnosis per 1,000 population: 1.15; 
2006: 
Autistic disorders: 528; 
Population: 389,000; 
Rate of children receiving diagnosis per 1,000 population: 1.36; 
2007: 
Autistic disorders: 620; 
Population: 387,000; 
Rate of children receiving diagnosis per 1,000 population: 1.60; 
2008: 
Autistic disorders: 726; 
Population: 386,000; 
Rate of children receiving diagnosis per 1,000 population: 1.88; 
2009: 
Autistic disorders: 825; 
Population: 386,000; 
Rate of children receiving diagnosis per 1,000 population: 2.13; 
2010: 
Autistic disorders: 926; 
Population: 387,000; 
Rate of children receiving diagnosis per 1,000 population: 2.39; 
2011: 
Autistic disorders: 1,046; 
Population: 385,000; 
Rate of children receiving diagnosis per 1,000 population: 2.72. 

State: Wisconsin; 

2000: 
Autistic disorders: 603; 
Population: 1,369,000; 
Rate of children receiving diagnosis per 1,000 population: 0.44; 
2001: 
Autistic disorders: 689; 
Population: 1,353,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2002: 
Autistic disorders: 721; 
Population: 1,338,000; 
Rate of children receiving diagnosis per 1,000 population: 0.54; 
2003: 
Autistic disorders: 770; 
Population: 1,333,000; 
Rate of children receiving diagnosis per 1,000 population: 0.58; 
2004: 
Autistic disorders: 823; 
Population: 1,308,000; 
Rate of children receiving diagnosis per 1,000 population: 0.63; 
2005: 
Autistic disorders: 963; 
Population: 1,296,000; 
Rate of children receiving diagnosis per 1,000 population: 0.74; 
2006: 
Autistic disorders: 1,041; 
Population: 1,313,000; 
Rate of children receiving diagnosis per 1,000 population: 0.79; 
2007: 
Autistic disorders: 1,189; 
Population: 1,321,000; 
Rate of children receiving diagnosis per 1,000 population: 0.90; 
2008: 
Autistic disorders: 1,272; 
Population: 1,314,000; 
Rate of children receiving diagnosis per 1,000 population: 0.97; 
2009: 
Autistic disorders: 1,391; 
Population: 1,310,000; 
Rate of children receiving diagnosis per 1,000 population: 1.06; 
2010: 
Autistic disorders: 1,517; 
Population: 1,339,000; 
Rate of children receiving diagnosis per 1,000 population: 1.13; 
2011: 
Autistic disorders: 1,714; 
Population: 1,326,000; 
Rate of children receiving diagnosis per 1,000 population: 1.29. 

State: Wyoming; 
2000: 
Autistic disorders: 33; 
Population: 129,000; 
Rate of children receiving diagnosis per 1,000 population: 0.26; 
2001: 
Autistic disorders: 38; 
Population: 124,000; 
Rate of children receiving diagnosis per 1,000 population: 0.31; 
2002: 
Autistic disorders: 37; 
Population: 122,000; 
Rate of children receiving diagnosis per 1,000 population: 0.30; 
2003: 
Autistic disorders: 39; 
Population: 121,000; 
Rate of children receiving diagnosis per 1,000 population: 0.32; 
2004: 
Autistic disorders: 53; 
Population: 117,000; 
Rate of children receiving diagnosis per 1,000 population: 0.45; 
2005: 
Autistic disorders: 68; 
Population: 114,000; 
Rate of children receiving diagnosis per 1,000 population: 0.59; 
2006: 
Autistic disorders: 71; 
Population: 122,000; 
Rate of children receiving diagnosis per 1,000 population: 0.58; 
2007: 
Autistic disorders: 66; 
Population: 125,000; 
Rate of children receiving diagnosis per 1,000 population: 0.53; 
2008: 
Autistic disorders: 66; 
Population: 128,000; 
Rate of children receiving diagnosis per 1,000 population: 0.51; 
2009: 
Autistic disorders: 97; 
Population: 132,000; 
Rate of children receiving diagnosis per 1,000 population: 0.73; 
2010: 
Autistic disorders: 124; 
Population: 135,000; 
Rate of children receiving diagnosis per 1,000 population: 0.92; 
2011: 
Autistic disorders: 129; 
Population: 135,000; 
Rate of children receiving diagnosis per 1,000 population: 0.96. 

State: Total: 

2000: 
Autistic disorders: 29,181; 
Population: 72,295,000; 
Rate of children receiving diagnosis per 1,000 population: 0.40; 
2001: 
Autistic disorders: 33,371; 
Population: 72,616,000; 
Rate of children receiving diagnosis per 1,000 population: 0.46; 
2002: 
Autistic disorders: 34,398; 
Population: 72,894,000; 
Rate of children receiving diagnosis per 1,000 population: 0.47; 
2003: 
Autistic disorders: 38,756; 
Population: 73,044,000; 
Rate of children receiving diagnosis per 1,000 population: 0.53; 
2004: 
Autistic disorders: 43,661; 
Population: 73,278,000; 
Rate of children receiving diagnosis per 1,000 population: 0.60; 
2005: 
Autistic disorders: 50,098; 
Population: 73,470,000; 
Rate of children receiving diagnosis per 1,000 population: 0.68; 
2006: 
Autistic disorders: 56,985; 
Population: 73,736,000; 
Rate of children receiving diagnosis per 1,000 population: 0.77; 
2007: 
Autistic disorders: 64,884; 
Population: 73,902,000; 
Rate of children receiving diagnosis per 1,000 population: 0.88; 
2008: 
Autistic disorders: 73,158; 
Population: 73,942,000; 
Rate of children receiving diagnosis per 1,000 population: 0.99; 
2009: 
Autistic disorders: 83,790; 
Population: 74,548,000; 
Rate of children receiving diagnosis per 1,000 population: 1.12; 
2010: 
Autistic disorders: 94,588; 
Population: 74,181,000; 
Rate of children receiving diagnosis per 1,000 population: 1.28; 
2011: 
Autistic disorders: 106,875; 
Population: 73,934,000; 
Rate of children receiving diagnosis per 1,000 population: 1.45. 

Source: GAO analysis of data from SSA Supplemental Security Record and U.S. Census Bureau.