Counties in Wisconsin by uninsured rate, ages 18 to 64 (US model-based estimate)

Clark County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 72 counties in 2023, at 16.2%. Waukesha County had the lowest, at 3.6%. The median was 6.9% and the figure for Wisconsin was 6.6%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest16.2Clark County
Median6.972 counties
Wisconsin6.6History

Map of counties, 2023

Adams County: 7.5 %Ashland County: 6.7 %Barron County: 8 %Bayfield County: 7.2 %Brown County: 7.2 %Buffalo County: 6.7 %Burnett County: 7.6 %Calumet County: 4.6 %Chippewa County: 6.7 %Clark County: 16.2 %Columbia County: 5.8 %Crawford County: 7 %Dane County: 4.7 %Dodge County: 6 %Door County: 7.1 %Douglas County: 6.3 %Dunn County: 6 %Eau Claire County: 6.2 %Florence County: 7.1 %Fond du Lac County: 5.7 %Forest County: 8.7 %Grant County: 8.3 %Green County: 5.6 %Green Lake County: 8.6 %Iowa County: 5.5 %Iron County: 6.1 %Jackson County: 7.9 %Jefferson County: 5.9 %Juneau County: 7.8 %Kenosha County: 6.8 %Kewaunee County: 5.9 %La Crosse County: 4.7 %Lafayette County: 10 %Langlade County: 8.2 %Lincoln County: 6.5 %Manitowoc County: 6.5 %Marathon County: 6.8 %Marinette County: 6.2 %Marquette County: 7 %Menominee County: 4.9 %Milwaukee County: 9.3 %Monroe County: 8.5 %Oconto County: 6.4 %Oneida County: 6.1 %Outagamie County: 6 %Ozaukee County: 3.9 %Pepin County: 7.6 %Pierce County: 4.5 %Polk County: 7.1 %Portage County: 6.6 %Price County: 7.2 %Racine County: 7.5 %Richland County: 7.7 %Rock County: 6.3 %Rusk County: 8.1 %St. Croix County: 5 %Sauk County: 6.9 %Sawyer County: 9 %Shawano County: 7.7 %Sheboygan County: 6.5 %Taylor County: 8.9 %Trempealeau County: 8.1 %Vernon County: 10 %Vilas County: 7.6 %Walworth County: 8 %Washburn County: 8 %Washington County: 4.1 %Waukesha County: 3.6 %Waupaca County: 6.9 %Waushara County: 8.6 %Winnebago County: 6 %Wood County: 5.7 %
  • Under 5.7
  • 5.7 to 6.3
  • 6.3 to 6.8
  • 6.8 to 7.5
  • 7.5 to 8.1
  • 8.1 and over
%, 2023. 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.

Top 40 counties, 2023

Clark County: 16.2 %Clark County16.2Lafayette County: 10 %Lafayette County10Vernon County: 10 %Vernon County10Milwaukee County: 9.3 %Milwaukee County9.3Sawyer County: 9 %Sawyer County9Taylor County: 8.9 %Taylor County8.9Forest County: 8.7 %Forest County8.7Green Lake County: 8.6 %Green Lake County8.6Waushara County: 8.6 %Waushara County8.6Monroe County: 8.5 %Monroe County8.5Grant County: 8.3 %Grant County8.3Langlade County: 8.2 %Langlade County8.2Rusk County: 8.1 %Rusk County8.1Trempealeau County: 8.1 %Trempealeau County8.1Barron County: 8 %Barron County8Walworth County: 8 %Walworth County8Washburn County: 8 %Washburn County8Jackson County: 7.9 %Jackson County7.9Juneau County: 7.8 %Juneau County7.8Richland County: 7.7 %Richland County7.7Shawano County: 7.7 %Shawano County7.7Burnett County: 7.6 %Burnett County7.6Pepin County: 7.6 %Pepin County7.6Vilas County: 7.6 %Vilas County7.6Adams County: 7.5 %Adams County7.5Racine County: 7.5 %Racine County7.5Bayfield County: 7.2 %Bayfield County7.2Brown County: 7.2 %Brown County7.2Price County: 7.2 %Price County7.2Door County: 7.1 %Door County7.1Florence County: 7.1 %Florence County7.1Polk County: 7.1 %Polk County7.1Crawford County: 7 %Crawford County7Marquette County: 7 %Marquette County7Sauk County: 6.9 %Sauk County6.9Waupaca County: 6.9 %Waupaca County6.9Kenosha County: 6.8 %Kenosha County6.8Marathon County: 6.8 %Marathon County6.8Ashland County: 6.7 %Ashland County6.7Buffalo County: 6.7 %Buffalo County6.7Clark County: 16.2 %Clark County16.2Lafayette County: 10 %Lafayette County10Vernon County: 10 %Vernon County10Milwaukee County: 9.3 %Milwaukee County9.3Sawyer County: 9 %Sawyer County9Taylor County: 8.9 %Taylor County8.9Forest County: 8.7 %Forest County8.7Green Lake County: 8.6 %Green Lake County8.6Waushara County: 8.6 %Waushara County8.6Monroe County: 8.5 %Monroe County8.5Grant County: 8.3 %Grant County8.3Langlade County: 8.2 %Langlade County8.2Rusk County: 8.1 %Rusk County8.1Trempealeau County: 8.1 %Trempealeau County8.1Barron County: 8 %Barron County8Walworth County: 8 %Walworth County8Washburn County: 8 %Washburn County8Jackson County: 7.9 %Jackson County7.9Juneau County: 7.8 %Juneau County7.8Richland County: 7.7 %Richland County7.7Shawano County: 7.7 %Shawano County7.7Burnett County: 7.6 %Burnett County7.6Pepin County: 7.6 %Pepin County7.6Vilas County: 7.6 %Vilas County7.6Adams County: 7.5 %Adams County7.5Racine County: 7.5 %Racine County7.5Bayfield County: 7.2 %Bayfield County7.2Brown County: 7.2 %Brown County7.2Price County: 7.2 %Price County7.2Door County: 7.1 %Door County7.1Florence County: 7.1 %Florence County7.1Polk County: 7.1 %Polk County7.1Crawford County: 7 %Crawford County7Marquette County: 7 %Marquette County7Sauk County: 6.9 %Sauk County6.9Waupaca County: 6.9 %Waupaca County6.9Kenosha County: 6.8 %Kenosha County6.8Marathon County: 6.8 %Marathon County6.8Ashland County: 6.7 %Ashland County6.7Buffalo County: 6.7 %Buffalo County6.7
%. 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

RankCounties2023 (%)Change on 2022
1Clark County16.2-1.2 pts
2Lafayette County10-0.1 pts
2Vernon County10-0.5 pts
4Milwaukee County9.3-0.1 pts
5Sawyer County9-0.7 pts
6Taylor County8.9+0.9 pts
7Forest County8.7-1.9 pts
8Green Lake County8.6-0.8 pts
8Waushara County8.6-0.6 pts
10Monroe County8.5-0.5 pts
11Grant County8.3-0.4 pts
12Langlade County8.2-0.3 pts
13Rusk County8.1-0.5 pts
13Trempealeau County8.1-0.1 pts
15Barron County8-0.5 pts
15Walworth County8-0.7 pts
15Washburn County8-1.1 pts
18Jackson County7.9-0.3 pts
19Juneau County7.8-0.2 pts
20Richland County7.7-0.5 pts
20Shawano County7.7-0.8 pts
22Burnett County7.6-0.6 pts
22Pepin County7.6-1.5 pts
22Vilas County7.6-2.6 pts
25Adams County7.5-1.7 pts
25Racine County7.5-0.6 pts
27Bayfield County7.2-1.6 pts
27Brown County7.2-0.4 pts
27Price County7.2-0.2 pts
30Door County7.1-0.7 pts
30Florence County7.1-0.4 pts
30Polk County7.1-0.8 pts
33Crawford County7-0.7 pts
33Marquette County7-0.4 pts
35Sauk County6.9-1.4 pts
35Waupaca County6.9-0.3 pts
37Kenosha County6.8-0.3 pts
37Marathon County6.8-0.8 pts
39Ashland County6.7-1.6 pts
39Buffalo County6.7-0.1 pts
39Chippewa County6.7-0.2 pts
42Portage County6.6-0.5 pts
43Lincoln County6.5-0.3 pts
43Manitowoc County6.5-0.1 pts
43Sheboygan County6.5+0.6 pts
46Oconto County6.4-0.4 pts
47Douglas County6.3+0.2 pts
47Rock County6.3-1.2 pts
49Eau Claire County6.2+0.1 pts
49Marinette County6.2-1.1 pts
51Iron County6.1-0.5 pts
51Oneida County6.1-1.4 pts
53Dodge County6-0.4 pts
53Dunn County6-0.2 pts
53Outagamie County6+0.2 pts
53Winnebago County6-0.4 pts
57Jefferson County5.9-0.7 pts
57Kewaunee County5.9-0.4 pts
59Columbia County5.8-0.7 pts
60Fond du Lac County5.7-0.4 pts
60Wood County5.7-0.8 pts
62Green County5.6-1.2 pts
63Iowa County5.5+0.3 pts
64St. Croix County5-0.1 pts
65Menominee County4.9-0.5 pts
66Dane County4.7-0.3 pts
66La Crosse County4.7-1 pts
68Calumet County4.6+0.1 pts
69Pierce County4.5-1 pts
70Washington County4.1-0.5 pts
71Ozaukee County3.9-0.6 pts
72Waukesha County3.6-0.6 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 counties 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

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 (Counties in Wisconsin 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, Counties in Wisconsin 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/wisconsin-counties?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. Counties in Wisconsin 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/wisconsin-counties?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, Counties in Wisconsin 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/wisconsin-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_wisconsin_by_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: Counties in Wisconsin 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/wisconsin-counties?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: Counties in Wisconsin 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/wisconsin-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/wisconsin-counties?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  - 
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Rank Counties in Wisconsin by uninsured rate, ages 18 to 64 (US model-based estimate) using official data, and cite the source.
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Questions

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

Clark County, with 16.2% in 2023, according to the U.S. Census Bureau.

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

Waukesha County, with 3.6% 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 Wisconsin: more rankings