Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / US states

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 2016, at 22.6%. Massachusetts had the lowest, at 3.6%. The median was 11.2%. Source: the U.S. Census Bureau.

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Highest22.6Texas
Lowest3.6Massachusetts
Median11.251 states

Map of states, 2016

Alabama: 13.8 %Alaska: 17.6 %Arizona: 13.8 %Arkansas: 11.6 %California: 10.4 %Colorado: 10.2 %Connecticut: 6.8 %Delaware: 8 %District of Columbia: 4.5 %Florida: 18.4 %Georgia: 18.2 %Hawaii: 4.9 %Idaho: 15 %Illinois: 9.3 %Indiana: 10.9 %Iowa: 6 %Kansas: 12.3 %Kentucky: 7.1 %Louisiana: 15.3 %Maine: 11.8 %Maryland: 8.4 %Massachusetts: 3.6 %Michigan: 7.6 %Minnesota: 5.4 %Mississippi: 17.8 %Missouri: 12.8 %Montana: 11.9 %Nebraska: 11.8 %Nevada: 15.5 %New Hampshire: 8.7 %New Jersey: 11.2 %New Mexico: 13.5 %New York: 8.6 %North Carolina: 15.1 %North Dakota: 7.8 %Ohio: 7.8 %Oklahoma: 19.5 %Oregon: 8.9 %Pennsylvania: 7.6 %Rhode Island: 6.1 %South Carolina: 15 %South Dakota: 12.7 %Tennessee: 13.3 %Texas: 22.6 %Utah: 11.6 %Vermont: 5.7 %Virginia: 11.8 %Washington: 8.4 %West Virginia: 8 %Wisconsin: 7.3 %Wyoming: 15.6 %
  • Under 7.2
  • 7.2 to 8.4
  • 8.4 to 11
  • 11 to 13
  • 13 to 15
  • 15 and over
%, 2016. Source: 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. Boundaries: U.S. Census Bureau cartographic boundary files.

All states, 2016

Texas: 22.6 %Texas22.6Oklahoma: 19.5 %Oklahoma19.5Florida: 18.4 %Florida18.4Georgia: 18.2 %Georgia18.2Mississippi: 17.8 %Mississippi17.8Alaska: 17.6 %Alaska17.6Wyoming: 15.6 %Wyoming15.6Nevada: 15.5 %Nevada15.5Louisiana: 15.3 %Louisiana15.3North Carolina: 15.1 %North Carolina15.1Idaho: 15 %Idaho15South Carolina: 15 %South Carolina15Alabama: 13.8 %Alabama13.8Arizona: 13.8 %Arizona13.8New Mexico: 13.5 %New Mexico13.5Tennessee: 13.3 %Tennessee13.3Missouri: 12.8 %Missouri12.8South Dakota: 12.7 %South Dakota12.7Kansas: 12.3 %Kansas12.3Montana: 11.9 %Montana11.9Maine: 11.8 %Maine11.8Nebraska: 11.8 %Nebraska11.8Virginia: 11.8 %Virginia11.8Arkansas: 11.6 %Arkansas11.6Utah: 11.6 %Utah11.6New Jersey: 11.2 %New Jersey11.2Indiana: 10.9 %Indiana10.9California: 10.4 %California10.4Colorado: 10.2 %Colorado10.2Illinois: 9.3 %Illinois9.3Oregon: 8.9 %Oregon8.9New Hampshire: 8.7 %New Hampshire8.7New York: 8.6 %New York8.6Maryland: 8.4 %Maryland8.4Washington: 8.4 %Washington8.4Delaware: 8 %Delaware8West Virginia: 8 %West Virginia8North Dakota: 7.8 %North Dakota7.8Ohio: 7.8 %Ohio7.8Michigan: 7.6 %Michigan7.6Pennsylvania: 7.6 %Pennsylvania7.6Wisconsin: 7.3 %Wisconsin7.3Kentucky: 7.1 %Kentucky7.1Connecticut: 6.8 %Connecticut6.8Rhode Island: 6.1 %Rhode Island6.1Iowa: 6 %Iowa6Vermont: 5.7 %Vermont5.7Minnesota: 5.4 %Minnesota5.4Hawaii: 4.9 %Hawaii4.9District of Columbia: 4.5 %District of Columbia4.5Massachusetts: 3.6 %Massachusetts3.6Texas: 22.6 %Texas22.6Oklahoma: 19.5 %Oklahoma19.5Florida: 18.4 %Florida18.4Georgia: 18.2 %Georgia18.2Mississippi: 17.8 %Mississippi17.8Alaska: 17.6 %Alaska17.6Wyoming: 15.6 %Wyoming15.6Nevada: 15.5 %Nevada15.5Louisiana: 15.3 %Louisiana15.3North Carolina: 15.1 %North Carolina15.1Idaho: 15 %Idaho15South Carolina: 15 %South Carolina15Alabama: 13.8 %Alabama13.8Arizona: 13.8 %Arizona13.8New Mexico: 13.5 %New Mexico13.5Tennessee: 13.3 %Tennessee13.3Missouri: 12.8 %Missouri12.8South Dakota: 12.7 %South Dakota12.7Kansas: 12.3 %Kansas12.3Montana: 11.9 %Montana11.9Maine: 11.8 %Maine11.8Nebraska: 11.8 %Nebraska11.8Virginia: 11.8 %Virginia11.8Arkansas: 11.6 %Arkansas11.6Utah: 11.6 %Utah11.6New Jersey: 11.2 %New Jersey11.2Indiana: 10.9 %Indiana10.9California: 10.4 %California10.4Colorado: 10.2 %Colorado10.2Illinois: 9.3 %Illinois9.3Oregon: 8.9 %Oregon8.9New Hampshire: 8.7 %New Hampshire8.7New York: 8.6 %New York8.6Maryland: 8.4 %Maryland8.4Washington: 8.4 %Washington8.4Delaware: 8 %Delaware8West Virginia: 8 %West Virginia8North Dakota: 7.8 %North Dakota7.8Ohio: 7.8 %Ohio7.8Michigan: 7.6 %Michigan7.6Pennsylvania: 7.6 %Pennsylvania7.6Wisconsin: 7.3 %Wisconsin7.3Kentucky: 7.1 %Kentucky7.1Connecticut: 6.8 %Connecticut6.8Rhode Island: 6.1 %Rhode Island6.1Iowa: 6 %Iowa6Vermont: 5.7 %Vermont5.7Minnesota: 5.4 %Minnesota5.4Hawaii: 4.9 %Hawaii4.9District of Columbia: 4.5 %District of Columbia4.5Massachusetts: 3.6 %Massachusetts3.6
%. Source: 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.

Full ranking

RankStates2016 (%)Change on 2015
1Texas22.6-0.7 pts
2Oklahoma19.5-0.2 pts
3Florida18.4-1.1 pts
4Georgia18.2-1.2 pts
5Mississippi17.8-1.3 pts
6Alaska17.6-1.1 pts
7Wyoming15.6+0.1 pts
8Nevada15.5-1 pts
9Louisiana15.3-2.5 pts
10North Carolina15.1-1.1 pts
11Idaho15-1 pts
11South Carolina15-1.3 pts
13Alabama13.8-1.5 pts
13Arizona13.8-0.8 pts
15New Mexico13.5-3 pts
16Tennessee13.3-1.7 pts
17Missouri12.8-0.8 pts
18South Dakota12.7-1.2 pts
19Kansas12.3-0.5 pts
20Montana11.9-4.6 pts
21Maine11.8-0.1 pts
21Nebraska11.8+0.7 pts
21Virginia11.8-0.6 pts
24Arkansas11.6-2 pts
24Utah11.6-2.4 pts
26New Jersey11.2-1 pts
27Indiana10.9-2.2 pts
28California10.4-1.7 pts
29Colorado10.2-0.9 pts
30Illinois9.3-0.9 pts
31Oregon8.9-1.1 pts
32New Hampshire8.7-0.7 pts
33New York8.6-1.6 pts
34Maryland8.4-0.4 pts
34Washington8.4-1 pts
36Delaware8-0.4 pts
36West Virginia8-0.8 pts
38North Dakota7.8-1.3 pts
38Ohio7.8-1.2 pts
40Michigan7.6-1.1 pts
40Pennsylvania7.6-1.3 pts
42Wisconsin7.3-0.4 pts
43Kentucky7.1-1.1 pts
44Connecticut6.8-1.4 pts
45Rhode Island6.1-1.7 pts
46Iowa6-0.8 pts
47Vermont5.7-0.1 pts
48Minnesota5.4-0.6 pts
49Hawaii4.9-1 pts
50District of Columbia4.5-0.5 pts
51Massachusetts3.6-0.3 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-2016-csv.zip. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

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), 2016) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-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), 2016. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2016. 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), 2016. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2016.

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), 2016 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2016 (Accessed: 12 October 2026).

BibTeX
@misc{census_us_states_by_uninsured_2016,
  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), 2016}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2016. 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-2016-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), 2016
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-2016-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2016
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/us-states?period=2016.
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-2016-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which state has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Texas, with 22.6% in 2016, according to the U.S. Census Bureau.

Which state has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Massachusetts, with 3.6% in 2016.

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

US states: more rankings