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

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 2015, at 16.3%. Waukesha County had the lowest, at 4.2%. The median was 8% and the figure for Wisconsin was 7.7%. Source: the U.S. Census Bureau.

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Highest16.3Clark County
Lowest4.2Waukesha County
Median872 counties
Wisconsin7.7History

Map of counties, 2015

Adams County: 9.1 %Ashland County: 10 %Barron County: 8.6 %Bayfield County: 10.8 %Brown County: 9 %Buffalo County: 7.7 %Burnett County: 9.7 %Calumet County: 4.9 %Chippewa County: 7.6 %Clark County: 16.3 %Columbia County: 6.1 %Crawford County: 7.5 %Dane County: 6.2 %Dodge County: 5.9 %Door County: 7.6 %Douglas County: 7.7 %Dunn County: 7.1 %Eau Claire County: 6.7 %Florence County: 9.4 %Fond du Lac County: 6.6 %Forest County: 12.1 %Grant County: 8.7 %Green County: 6.4 %Green Lake County: 10.5 %Iowa County: 6.5 %Iron County: 8.3 %Jackson County: 11.1 %Jefferson County: 7.4 %Juneau County: 9.8 %Kenosha County: 8.6 %Kewaunee County: 6.5 %La Crosse County: 6 %Lafayette County: 10.5 %Langlade County: 8.9 %Lincoln County: 6.8 %Manitowoc County: 7 %Marathon County: 7.1 %Marinette County: 7.7 %Marquette County: 8.1 %Menominee County: 13.2 %Milwaukee County: 10.7 %Monroe County: 8.6 %Oconto County: 7.7 %Oneida County: 6.8 %Outagamie County: 6.9 %Ozaukee County: 4.5 %Pepin County: 8.2 %Pierce County: 6.1 %Polk County: 8.4 %Portage County: 6 %Price County: 7.3 %Racine County: 8 %Richland County: 8.2 %Rock County: 9.8 %Rusk County: 9.8 %St. Croix County: 5 %Sauk County: 8.1 %Sawyer County: 12.2 %Shawano County: 10.1 %Sheboygan County: 6.8 %Taylor County: 8.4 %Trempealeau County: 8.6 %Vernon County: 10.2 %Vilas County: 11.3 %Walworth County: 9.7 %Washburn County: 7.9 %Washington County: 5.3 %Waukesha County: 4.2 %Waupaca County: 7.5 %Waushara County: 9.8 %Winnebago County: 6 %Wood County: 6.8 %
  • Under 6.4
  • 6.4 to 7.1
  • 7.1 to 8
  • 8 to 8.6
  • 8.6 to 10
  • 10 and over
%, 2015. 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, 2015

Clark County: 16.3 %Clark County16.3Menominee County: 13.2 %Menominee County13.2Sawyer County: 12.2 %Sawyer County12.2Forest County: 12.1 %Forest County12.1Vilas County: 11.3 %Vilas County11.3Jackson County: 11.1 %Jackson County11.1Bayfield County: 10.8 %Bayfield County10.8Milwaukee County: 10.7 %Milwaukee County10.7Green Lake County: 10.5 %Green Lake County10.5Lafayette County: 10.5 %Lafayette County10.5Vernon County: 10.2 %Vernon County10.2Shawano County: 10.1 %Shawano County10.1Ashland County: 10 %Ashland County10Juneau County: 9.8 %Juneau County9.8Rock County: 9.8 %Rock County9.8Rusk County: 9.8 %Rusk County9.8Waushara County: 9.8 %Waushara County9.8Burnett County: 9.7 %Burnett County9.7Walworth County: 9.7 %Walworth County9.7Florence County: 9.4 %Florence County9.4Adams County: 9.1 %Adams County9.1Brown County: 9 %Brown County9Langlade County: 8.9 %Langlade County8.9Grant County: 8.7 %Grant County8.7Barron County: 8.6 %Barron County8.6Kenosha County: 8.6 %Kenosha County8.6Monroe County: 8.6 %Monroe County8.6Trempealeau County: 8.6 %Trempealeau County8.6Polk County: 8.4 %Polk County8.4Taylor County: 8.4 %Taylor County8.4Iron County: 8.3 %Iron County8.3Pepin County: 8.2 %Pepin County8.2Richland County: 8.2 %Richland County8.2Marquette County: 8.1 %Marquette County8.1Sauk County: 8.1 %Sauk County8.1Racine County: 8 %Racine County8Washburn County: 7.9 %Washburn County7.9Buffalo County: 7.7 %Buffalo County7.7Douglas County: 7.7 %Douglas County7.7Marinette County: 7.7 %Marinette County7.7Clark County: 16.3 %Clark County16.3Menominee County: 13.2 %Menominee County13.2Sawyer County: 12.2 %Sawyer County12.2Forest County: 12.1 %Forest County12.1Vilas County: 11.3 %Vilas County11.3Jackson County: 11.1 %Jackson County11.1Bayfield County: 10.8 %Bayfield County10.8Milwaukee County: 10.7 %Milwaukee County10.7Green Lake County: 10.5 %Green Lake County10.5Lafayette County: 10.5 %Lafayette County10.5Vernon County: 10.2 %Vernon County10.2Shawano County: 10.1 %Shawano County10.1Ashland County: 10 %Ashland County10Juneau County: 9.8 %Juneau County9.8Rock County: 9.8 %Rock County9.8Rusk County: 9.8 %Rusk County9.8Waushara County: 9.8 %Waushara County9.8Burnett County: 9.7 %Burnett County9.7Walworth County: 9.7 %Walworth County9.7Florence County: 9.4 %Florence County9.4Adams County: 9.1 %Adams County9.1Brown County: 9 %Brown County9Langlade County: 8.9 %Langlade County8.9Grant County: 8.7 %Grant County8.7Barron County: 8.6 %Barron County8.6Kenosha County: 8.6 %Kenosha County8.6Monroe County: 8.6 %Monroe County8.6Trempealeau County: 8.6 %Trempealeau County8.6Polk County: 8.4 %Polk County8.4Taylor County: 8.4 %Taylor County8.4Iron County: 8.3 %Iron County8.3Pepin County: 8.2 %Pepin County8.2Richland County: 8.2 %Richland County8.2Marquette County: 8.1 %Marquette County8.1Sauk County: 8.1 %Sauk County8.1Racine County: 8 %Racine County8Washburn County: 7.9 %Washburn County7.9Buffalo County: 7.7 %Buffalo County7.7Douglas County: 7.7 %Douglas County7.7Marinette County: 7.7 %Marinette County7.7
%. 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

RankCounties2015 (%)Change on 2014
1Clark County16.3-4.3 pts
2Menominee County13.2-5.1 pts
3Sawyer County12.2-2.6 pts
4Forest County12.1-3.6 pts
5Vilas County11.3-3.7 pts
6Jackson County11.1-2.7 pts
7Bayfield County10.8-2.3 pts
8Milwaukee County10.7-3.3 pts
9Green Lake County10.5-1.3 pts
9Lafayette County10.5-3.5 pts
11Vernon County10.2-4.5 pts
12Shawano County10.1-2.6 pts
13Ashland County10-3.4 pts
14Juneau County9.8-1.9 pts
14Rock County9.8-0.9 pts
14Rusk County9.8-2.6 pts
14Waushara County9.8-3 pts
18Burnett County9.7-3.2 pts
18Walworth County9.7-2.9 pts
20Florence County9.4-2.5 pts
21Adams County9.1-1.6 pts
22Brown County9-1.7 pts
23Langlade County8.9-2.5 pts
24Grant County8.7-3.1 pts
25Barron County8.6-2.8 pts
25Kenosha County8.6-1.6 pts
25Monroe County8.6-3.1 pts
25Trempealeau County8.6-2.4 pts
29Polk County8.4-2.4 pts
29Taylor County8.4-3.3 pts
31Iron County8.3-3.6 pts
32Pepin County8.2-2.2 pts
32Richland County8.2-3.5 pts
34Marquette County8.1-3.7 pts
34Sauk County8.1-3.9 pts
36Racine County8-3.3 pts
37Washburn County7.9-3.6 pts
38Buffalo County7.7-2.7 pts
38Douglas County7.7-2.3 pts
38Marinette County7.7-2 pts
38Oconto County7.7-2 pts
42Chippewa County7.6-1.9 pts
42Door County7.6-2.4 pts
44Crawford County7.5-2.8 pts
44Waupaca County7.5-1.6 pts
46Jefferson County7.4-1.7 pts
47Price County7.3-2.6 pts
48Dunn County7.1-1.7 pts
48Marathon County7.1-1.3 pts
50Manitowoc County7-1.9 pts
51Outagamie County6.9-1.2 pts
52Lincoln County6.8-2.7 pts
52Oneida County6.8-2.7 pts
52Sheboygan County6.8-2.7 pts
52Wood County6.8-1.5 pts
56Eau Claire County6.7-3.4 pts
57Fond du Lac County6.6-2.2 pts
58Iowa County6.5-2.7 pts
58Kewaunee County6.5-2 pts
60Green County6.4-2.9 pts
61Dane County6.2-2.2 pts
62Columbia County6.1-2 pts
62Pierce County6.1-1.8 pts
64La Crosse County6-2 pts
64Portage County6-3.2 pts
64Winnebago County6-2.4 pts
67Dodge County5.9-3 pts
68Washington County5.3-1.2 pts
69St. Croix County5-1.9 pts
70Calumet County4.9-1.8 pts
71Ozaukee County4.5-1.7 pts
72Waukesha County4.2-1.5 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-2015-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), 2015) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-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), 2015. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/wisconsin-counties?period=2015. 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), 2015. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/wisconsin-counties?period=2015.

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), 2015 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/wisconsin-counties?period=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_wisconsin_by_2015,
  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), 2015}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/wisconsin-counties?period=2015. 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-2015-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), 2015
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-2015-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/wisconsin-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/wisconsin-counties?period=2015.
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-2015-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

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

Clark County, with 16.3% in 2015, 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 4.2% in 2015.

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