15 States Where the Most People Have Health Insurance


More than 9 in 10 people in the U.S. had some type of health insurance coverage in 2021, according to the latest data from the U.S. Census Bureau. Nationwide, 8.3% of Americans went uninsured for the full year.
However, the rates of coverage can vary widely from state to state.
Following are the states with the smallest proportion of uninsured residents and, therefore, the biggest share of people covered by health insurance.
For a look at the states at the opposite end of this spectrum, check out “15 States Where the Most People Lack Health Insurance.”
14. Delaware (three-way tie)

State’s population without health insurance coverage in:
- 2021: 5.7%
- 2019: 6.6%
- 2010: 9.7%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
14. Maine (three-way tie)

State’s population without health insurance coverage in:
- 2021: 5.7%
- 2019: 8.0%
- 2010: 10.1%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
14. Kentucky (three-way tie)

State’s population without health insurance coverage in:
- 2021: 5.7%
- 2019: 6.4%
- 2010: 15.3%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
13. Pennsylvania

State’s population without health insurance coverage in:
- 2021: 5.5%
- 2019: 5.8%
- 2010: 10.2%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
12. Wisconsin

State’s population without health insurance coverage in:
- 2021: 5.4%
- 2019: 5.7%
- 2010: 9.4%
State’s Medicaid expansion status as of Jan. 1, 2021: Not expanded
10. New York (tie)

State’s population without health insurance coverage in:
- 2021: 5.2%
- 2019: 5.2%
- 2010: 11.9%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
10. Connecticut (tie)

State’s population without health insurance coverage in:
- 2021: 5.2%
- 2019: 5.9%
- 2010: 9.1%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
9. New Hampshire

State’s population without health insurance coverage in:
- 2021: 5.1%
- 2019: 6.3%
- 2010: 11.1%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
8. Michigan

State’s population without health insurance coverage in:
- 2021: 5.0%
- 2019: 5.8%
- 2010: 12.4%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
7. Iowa

State’s population without health insurance coverage in:
- 2021: 4.8%
- 2019: 5.0%
- 2010: 9.3%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
6. Minnesota

State’s population without health insurance coverage in:
- 2021: 4.5%
- 2019: 4.9%
- 2010: 9.1%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
5. Rhode Island

State’s population without health insurance coverage in:
- 2021: 4.3%
- 2019: 4.1%
- 2010: 12.2%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
4. Hawaii

State’s population without health insurance coverage in:
- 2021: 3.9%
- 2019: 4.2%
- 2010: 7.9%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
2. District of Columbia (tie)

District’s population without health insurance coverage in:
- 2021: 3.7%
- 2019: 3.5%
- 2010: 7.6%
District’s Medicaid expansion status as of Jan. 1, 2021: Expanded
2. Vermont (tie)

State’s population without health insurance coverage in:
- 2021: 3.7%
- 2019: 4.5%
- 2010: 8.0%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
1. Massachusetts

State’s population without health insurance coverage in:
- 2021: 2.5%
- 2019: 3.0%
- 2010: 4.4%
State’s Medicaid expansion status as of Jan. 1, 2021: Expanded
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