Concentration in Health Insurance Markets

This interactive chart provides details on 1) enrollment in the overall individual market and the individual exchanges as measured by covered life-years, and 2) covered life-years in each state's individual exchange as a proportion of covered life-years in the overall individual market from 2015 through 2022.



Minnesota

Source: GAO analysis of data from the Centers for Medicare & Medicaid Services (CMS). | GAO-25-107194


The table below displays data for the selected state. Click here to download the data used in this graphic.



State Year Covered life-years, individual exchange Covered life-years, individual market Individual exchange covered life-years as a proportion of overall individual market (%)
Minnesota 2015 -- 311,196 --
Minnesota 2016 65,995 260,562 25
Minnesota 2017 90,090 158,790 57
Minnesota 2018 95,922 151,209 63
Minnesota 2019 97,525 151,633 64
Minnesota 2020 102,984 159,150 65
Minnesota 2021 107,235 136,481 79
Minnesota 2022 109,844 164,043 67

  • We calculated the size of each market from 2015 through 2022 using covered life-years that issuers reported to Centers for Medicare & Medicaid Services or states. This measure is calculated as the average number of lives insured each month in the reporting year. Rather than a point-in-time measurement, this measure accounts for changes in enrollment that occur throughout the year.
  • Covered life-years is one of several ways to measure health insurance enrollment, so it may differ from other measures of market size.
  • We rounded market share values of less than 0.5 percent to zero.
  • Minnesota is not included in this figure for 2015 because we were unable to obtain data for that year.