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

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

LaGrange County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 92 counties in 2018, at 23.9%. Hamilton County had the lowest, at 6.2%. The median was 10.6% and the figure for Indiana was 11%. Source: the U.S. Census Bureau.

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Highest23.9LaGrange County
Lowest6.2Hamilton County
Median10.692 counties
Indiana11History

Map of counties, 2018

Adams County: 14.3 %Allen County: 11.7 %Bartholomew County: 10.8 %Benton County: 11.6 %Blackford County: 9.8 %Boone County: 7.5 %Brown County: 11.7 %Carroll County: 11.3 %Cass County: 14.3 %Clark County: 10.1 %Clay County: 9 %Clinton County: 13.7 %Crawford County: 12.7 %Daviess County: 18.2 %Dearborn County: 8.2 %Decatur County: 8.9 %DeKalb County: 9 %Delaware County: 10.8 %Dubois County: 9.7 %Elkhart County: 16.6 %Fayette County: 11 %Floyd County: 8.5 %Fountain County: 10.7 %Franklin County: 9.5 %Fulton County: 12.5 %Gibson County: 8.2 %Grant County: 9.9 %Greene County: 10.6 %Hamilton County: 6.2 %Hancock County: 8.1 %Harrison County: 9.3 %Hendricks County: 7.6 %Henry County: 9.3 %Howard County: 9.3 %Huntington County: 9.8 %Jackson County: 12.1 %Jasper County: 10.7 %Jay County: 12.7 %Jefferson County: 9.7 %Jennings County: 10.5 %Johnson County: 9.2 %Knox County: 10.5 %Kosciusko County: 13.1 %LaGrange County: 23.9 %Lake County: 10.4 %LaPorte County: 10.5 %Lawrence County: 10.6 %Madison County: 10.4 %Marion County: 13.7 %Marshall County: 14.1 %Martin County: 10.5 %Miami County: 12.1 %Monroe County: 10.6 %Montgomery County: 10.8 %Morgan County: 9.4 %Newton County: 14.5 %Noble County: 12.4 %Ohio County: 8.1 %Orange County: 11.5 %Owen County: 11.7 %Parke County: 13.5 %Perry County: 8.8 %Pike County: 9.5 %Porter County: 9 %Posey County: 7.1 %Pulaski County: 10.7 %Putnam County: 8.8 %Randolph County: 12 %Ripley County: 10.4 %Rush County: 11.4 %St. Joseph County: 11.8 %Scott County: 10 %Shelby County: 9.1 %Spencer County: 9.3 %Starke County: 11.5 %Steuben County: 11.1 %Sullivan County: 10.8 %Switzerland County: 12.9 %Tippecanoe County: 10.9 %Tipton County: 9.4 %Union County: 10.2 %Vanderburgh County: 11.3 %Vermillion County: 9.4 %Vigo County: 11.5 %Wabash County: 10.4 %Warren County: 8.1 %Warrick County: 7.7 %Washington County: 11.9 %Wayne County: 12.4 %Wells County: 8.9 %White County: 13.5 %Whitley County: 9 %
  • Under 9
  • 9 to 9.7
  • 9.7 to 11
  • 11 to 12
  • 12 and over
%, 2018. 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, 2018

LaGrange County: 23.9 %LaGrange County23.9Daviess County: 18.2 %Daviess County18.2Elkhart County: 16.6 %Elkhart County16.6Newton County: 14.5 %Newton County14.5Adams County: 14.3 %Adams County14.3Cass County: 14.3 %Cass County14.3Marshall County: 14.1 %Marshall County14.1Clinton County: 13.7 %Clinton County13.7Marion County: 13.7 %Marion County13.7Parke County: 13.5 %Parke County13.5White County: 13.5 %White County13.5Kosciusko County: 13.1 %Kosciusko County13.1Switzerland County: 12.9 %Switzerland County12.9Crawford County: 12.7 %Crawford County12.7Jay County: 12.7 %Jay County12.7Fulton County: 12.5 %Fulton County12.5Noble County: 12.4 %Noble County12.4Wayne County: 12.4 %Wayne County12.4Jackson County: 12.1 %Jackson County12.1Miami County: 12.1 %Miami County12.1Randolph County: 12 %Randolph County12Washington County: 11.9 %Washington County11.9St. Joseph County: 11.8 %St. Joseph County11.8Allen County: 11.7 %Allen County11.7Brown County: 11.7 %Brown County11.7Owen County: 11.7 %Owen County11.7Benton County: 11.6 %Benton County11.6Orange County: 11.5 %Orange County11.5Starke County: 11.5 %Starke County11.5Vigo County: 11.5 %Vigo County11.5Rush County: 11.4 %Rush County11.4Carroll County: 11.3 %Carroll County11.3Vanderburgh County: 11.3 %Vanderburgh County11.3Steuben County: 11.1 %Steuben County11.1Fayette County: 11 %Fayette County11Tippecanoe County: 10.9 %Tippecanoe County10.9Bartholomew County: 10.8 %Bartholomew County10.8Delaware County: 10.8 %Delaware County10.8Montgomery County: 10.8 %Montgomery County10.8Sullivan County: 10.8 %Sullivan County10.8LaGrange County: 23.9 %LaGrange County23.9Daviess County: 18.2 %Daviess County18.2Elkhart County: 16.6 %Elkhart County16.6Newton County: 14.5 %Newton County14.5Adams County: 14.3 %Adams County14.3Cass County: 14.3 %Cass County14.3Marshall County: 14.1 %Marshall County14.1Clinton County: 13.7 %Clinton County13.7Marion County: 13.7 %Marion County13.7Parke County: 13.5 %Parke County13.5White County: 13.5 %White County13.5Kosciusko County: 13.1 %Kosciusko County13.1Switzerland County: 12.9 %Switzerland County12.9Crawford County: 12.7 %Crawford County12.7Jay County: 12.7 %Jay County12.7Fulton County: 12.5 %Fulton County12.5Noble County: 12.4 %Noble County12.4Wayne County: 12.4 %Wayne County12.4Jackson County: 12.1 %Jackson County12.1Miami County: 12.1 %Miami County12.1Randolph County: 12 %Randolph County12Washington County: 11.9 %Washington County11.9St. Joseph County: 11.8 %St. Joseph County11.8Allen County: 11.7 %Allen County11.7Brown County: 11.7 %Brown County11.7Owen County: 11.7 %Owen County11.7Benton County: 11.6 %Benton County11.6Orange County: 11.5 %Orange County11.5Starke County: 11.5 %Starke County11.5Vigo County: 11.5 %Vigo County11.5Rush County: 11.4 %Rush County11.4Carroll County: 11.3 %Carroll County11.3Vanderburgh County: 11.3 %Vanderburgh County11.3Steuben County: 11.1 %Steuben County11.1Fayette County: 11 %Fayette County11Tippecanoe County: 10.9 %Tippecanoe County10.9Bartholomew County: 10.8 %Bartholomew County10.8Delaware County: 10.8 %Delaware County10.8Montgomery County: 10.8 %Montgomery County10.8Sullivan County: 10.8 %Sullivan County10.8
%. 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

RankCounties2018 (%)Change on 2017
1LaGrange County23.9-0.4 pts
2Daviess County18.2-0.5 pts
3Elkhart County16.6+0.1 pts
4Newton County14.5+1.3 pts
5Adams County14.3+1 pts
5Cass County14.3-0.7 pts
7Marshall County14.1+0.1 pts
8Clinton County13.7+0.3 pts
8Marion County13.70 pts
10Parke County13.5+0.8 pts
10White County13.5+1.2 pts
12Kosciusko County13.1+0.1 pts
13Switzerland County12.9+0.1 pts
14Crawford County12.7-0.1 pts
14Jay County12.7+1.6 pts
16Fulton County12.5-0.3 pts
17Noble County12.4+0.4 pts
17Wayne County12.4-0.3 pts
19Jackson County12.1+0.5 pts
19Miami County12.1+0.7 pts
21Randolph County12+1 pts
22Washington County11.9+0.3 pts
23St. Joseph County11.8-0.3 pts
24Allen County11.7+0.7 pts
24Brown County11.7+0.4 pts
24Owen County11.7-0.9 pts
27Benton County11.6-0.6 pts
28Orange County11.5+0.1 pts
28Starke County11.5+0.3 pts
28Vigo County11.5+1.1 pts
31Rush County11.40 pts
32Carroll County11.30 pts
32Vanderburgh County11.3+1.6 pts
34Steuben County11.1+0.4 pts
35Fayette County11-0.1 pts
36Tippecanoe County10.9-0.5 pts
37Bartholomew County10.8-0.2 pts
37Delaware County10.8+0.5 pts
37Montgomery County10.8-0.4 pts
37Sullivan County10.8+0.3 pts
41Fountain County10.7+0.9 pts
41Jasper County10.7-0.1 pts
41Pulaski County10.7-0.6 pts
44Greene County10.6+0.5 pts
44Lawrence County10.6+0.9 pts
44Monroe County10.6+0.6 pts
47Jennings County10.5+0.5 pts
47Knox County10.5+0.8 pts
47LaPorte County10.5+0.6 pts
47Martin County10.5+0.1 pts
51Lake County10.4-0.6 pts
51Madison County10.4-0.3 pts
51Ripley County10.40 pts
51Wabash County10.4-0.1 pts
55Union County10.20 pts
56Clark County10.1+0.2 pts
57Scott County10+0.2 pts
58Grant County9.9-0.1 pts
59Blackford County9.80 pts
59Huntington County9.8+0.8 pts
61Dubois County9.7-0.5 pts
61Jefferson County9.7-0.7 pts
63Franklin County9.5-0.4 pts
63Pike County9.5-0.4 pts
65Morgan County9.4-0.1 pts
65Tipton County9.4+0.2 pts
65Vermillion County9.4+0.2 pts
68Harrison County9.3+0.1 pts
68Henry County9.3+0.3 pts
68Howard County9.3-0.2 pts
68Spencer County9.3-0.1 pts
72Johnson County9.2+0.2 pts
73Shelby County9.1-0.5 pts
74Clay County9-0.7 pts
74DeKalb County9-0.4 pts
74Porter County9+0.2 pts
74Whitley County9-0.7 pts
78Decatur County8.9-0.2 pts
78Wells County8.9-0.2 pts
80Perry County8.8-0.5 pts
80Putnam County8.8-0.4 pts
82Floyd County8.5+0.7 pts
83Dearborn County8.20 pts
83Gibson County8.2+0.6 pts
85Hancock County8.1+1.3 pts
85Ohio County8.1+0.2 pts
85Warren County8.1+0.1 pts
88Warrick County7.7-0.6 pts
89Hendricks County7.6+0.1 pts
90Boone County7.5+0.1 pts
91Posey County7.1-0.1 pts
92Hamilton County6.2-0.9 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-2018-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 Indiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-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 Indiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2018. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/indiana-counties?period=2018. 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 Indiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/indiana-counties?period=2018.

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 Indiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/indiana-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_indiana_by_2018,
  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 Indiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/indiana-counties?period=2018. 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-2018-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 Indiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2018
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-2018-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/indiana-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/indiana-counties?period=2018.
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-2018-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)?

LaGrange County, with 23.9% in 2018, according to the U.S. Census Bureau.

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

Hamilton County, with 6.2% in 2018.

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 Indiana: more rankings