US states by uninsured rate, ages 18 to 64 (US model-based estimate)
Texas had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 51 states in 2023, at 21.6%. Massachusetts had the lowest, at 3.5%. The median was 9%. Source: the U.S. Census Bureau.
Map of states, 2023
- Under 6.7
- 6.7 to 8.3
- 8.3 to 9
- 9 to 12
- 12 to 14
- 14 and over
All states, 2023
Full ranking
| Rank | States | 2023 (%) | Change on 2022 |
|---|---|---|---|
| 1 | Texas | 21.6 | -0.7 pts |
| 2 | Oklahoma | 16.6 | -0.5 pts |
| 3 | Georgia | 16 | -0.5 pts |
| 4 | Wyoming | 15.6 | -1 pts |
| 5 | Florida | 15.5 | -0.7 pts |
| 6 | Mississippi | 15 | -1.1 pts |
| 7 | Alaska | 14.7 | -0.5 pts |
| 8 | Nevada | 14.6 | -0.7 pts |
| 9 | New Mexico | 13.9 | +0.9 pts |
| 10 | Arizona | 13.8 | -0.6 pts |
| 11 | North Carolina | 13.2 | -0.3 pts |
| 12 | Tennessee | 13.1 | -0.1 pts |
| 13 | South Carolina | 13 | -0.4 pts |
| 14 | Alabama | 12.7 | -0.6 pts |
| 14 | Idaho | 12.7 | +1.2 pts |
| 16 | Arkansas | 12.3 | +0.4 pts |
| 17 | Montana | 11.9 | +0.1 pts |
| 18 | Kansas | 11.7 | -0.6 pts |
| 19 | South Dakota | 11.2 | -0.3 pts |
| 20 | Missouri | 10.5 | -1.5 pts |
| 21 | Utah | 10.3 | -0.4 pts |
| 22 | New Jersey | 10.1 | +0.6 pts |
| 23 | Louisiana | 10 | -0.2 pts |
| 24 | Colorado | 9.2 | -0.4 pts |
| 25 | Indiana | 9.1 | -0.3 pts |
| 26 | California | 9 | -0.1 pts |
| 26 | Delaware | 9 | +0.8 pts |
| 26 | West Virginia | 9 | -0.1 pts |
| 29 | Washington | 8.9 | +0.1 pts |
| 30 | Illinois | 8.8 | -0.6 pts |
| 30 | Maine | 8.8 | -0.8 pts |
| 30 | Nebraska | 8.8 | -0.4 pts |
| 33 | Virginia | 8.6 | -0.1 pts |
| 34 | Ohio | 8.4 | +0.3 pts |
| 35 | Maryland | 8.2 | +0.3 pts |
| 36 | Oregon | 8.1 | -0.7 pts |
| 37 | Connecticut | 7.9 | +0.7 pts |
| 38 | Kentucky | 7.6 | 0 pts |
| 39 | Pennsylvania | 7.1 | +0.1 pts |
| 40 | Iowa | 7 | +0.9 pts |
| 41 | New Hampshire | 6.8 | -0.2 pts |
| 41 | New York | 6.8 | 0 pts |
| 43 | Wisconsin | 6.6 | -0.4 pts |
| 44 | Michigan | 6.4 | -0.2 pts |
| 45 | North Dakota | 6.3 | -1.7 pts |
| 46 | Rhode Island | 5.9 | -0.2 pts |
| 47 | Minnesota | 5.8 | -0.4 pts |
| 48 | Vermont | 5.4 | -0.4 pts |
| 49 | Hawaii | 4.4 | -0.4 pts |
| 50 | District of Columbia | 3.5 | -0.1 pts |
| 50 | Massachusetts | 3.5 | +0.2 pts |
Other periods
About this ranking
People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.
A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.
Every value in the ranking comes from the same publisher and the same period, so the states are compared on one definition. Equal values share a rank.
How to cite
U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Retrieved 2026-10-12.
Citation styles
APA 7
U.S. Census Bureau. (2026). Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties (US states by uninsured rate, ages 18 to 64 (US model-based estimate), 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip
MLA 9
Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, US states by uninsured rate, ages 18 to 64 (US model-based estimate), 2023. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2023. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. US states by uninsured rate, ages 18 to 64 (US model-based estimate), 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2023.
Harvard
U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, US states by uninsured rate, ages 18 to 64 (US model-based estimate), 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2023 (Accessed: 12 October 2026).
BibTeX
@misc{census_us_states_by_uninsured_2023,
author = {{U.S. Census Bureau}},
title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: US states by uninsured rate, ages 18 to 64 (US model-based estimate), 2023}},
year = {2026},
howpublished = {Data set},
url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip},
urldate = {2026-10-12},
note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2023. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY - DATA
AU - U.S. Census Bureau
TI - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: US states by uninsured rate, ages 18 to 64 (US model-based estimate), 2023
PY - 2026
DA - 2026/08/06
PB - U.S. Census Bureau
DB - Invokely
UR - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip
L2 - https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2023
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2023.
N1 - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Retrieved 2026-10-12.
ER -
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank US states by uninsured rate, ages 18 to 64 (US model-based estimate) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate_18_64","level":"region","within":"United States","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=uninsured_rate_18_64&level=region&within=United%20States&limit=10
Questions
Which state has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?
Texas, with 21.6% in 2023, according to the U.S. Census Bureau.
Which state has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?
Massachusetts, with 3.5% in 2023.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.
Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings
- Counties in Illinois
- Counties in Arizona
- Counties in Virginia
- Counties in Pennsylvania
- Counties in West Virginia
- Counties in New Hampshire