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

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

McDonald County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 115 counties in 2023, at 21.4%. St. Charles County had the lowest, at 5.9%. The median was 12.7% and the figure for Missouri was 10.5%. Source: the U.S. Census Bureau.

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Highest21.4McDonald County
Lowest5.9St. Charles County
Median12.7115 counties
Missouri10.5History

Map of counties, 2023

Adair County: 13.3 %Andrew County: 8.7 %Atchison County: 11.6 %Audrain County: 13.8 %Barry County: 16 %Barton County: 14.5 %Bates County: 13.9 %Benton County: 14.5 %Bollinger County: 13.4 %Boone County: 9.3 %Buchanan County: 11.6 %Butler County: 14.6 %Caldwell County: 12.7 %Callaway County: 9.3 %Camden County: 12.3 %Cape Girardeau County: 11.3 %Carroll County: 10.7 %Carter County: 14 %Cass County: 7.8 %Cedar County: 15.9 %Chariton County: 10.9 %Christian County: 9.5 %Clark County: 12.4 %Clay County: 8.4 %Clinton County: 9.3 %Cole County: 9.4 %Cooper County: 9.9 %Crawford County: 14.4 %Dade County: 14.2 %Dallas County: 15.8 %Daviess County: 16.1 %DeKalb County: 11.3 %Dent County: 13.2 %Douglas County: 15 %Dunklin County: 14.6 %Franklin County: 11 %Gasconade County: 12.4 %Gentry County: 14.7 %Greene County: 11.7 %Grundy County: 14.3 %Harrison County: 13.1 %Henry County: 12.8 %Hickory County: 13 %Holt County: 10.7 %Howard County: 10.8 %Howell County: 14.9 %Iron County: 12.2 %Jackson County: 12.3 %Jasper County: 14.5 %Jefferson County: 8.8 %Johnson County: 10.3 %Knox County: 18.9 %Laclede County: 12.5 %Lafayette County: 10.5 %Lawrence County: 15.4 %Lewis County: 12.6 %Lincoln County: 10.3 %Linn County: 13.4 %Livingston County: 11.9 %McDonald County: 21.4 %Macon County: 11.6 %Madison County: 11.5 %Maries County: 13.1 %Marion County: 10.2 %Mercer County: 13.3 %Miller County: 13.7 %Mississippi County: 15.1 %Moniteau County: 15.9 %Monroe County: 12 %Montgomery County: 14.1 %Morgan County: 19.9 %New Madrid County: 12.6 %Newton County: 13.9 %Nodaway County: 10.6 %Oregon County: 14.1 %Osage County: 9.1 %Ozark County: 16.6 %Pemiscot County: 13.2 %Perry County: 11.8 %Pettis County: 14.6 %Phelps County: 12.1 %Pike County: 12.7 %Platte County: 7.3 %Polk County: 13.7 %Pulaski County: 10 %Putnam County: 10.6 %Ralls County: 10 %Randolph County: 11.6 %Ray County: 10.9 %Reynolds County: 13.4 %Ripley County: 13.9 %St. Charles County: 5.9 %St. Clair County: 12.7 %Ste. Genevieve County: 9.5 %St. Francois County: 11.9 %St. Louis County: 7.8 %Saline County: 11.4 %Schuyler County: 12.2 %Scotland County: 19.9 %Scott County: 12.2 %Shannon County: 13.3 %Shelby County: 13.9 %Stoddard County: 14.2 %Stone County: 13.1 %Sullivan County: 14 %Taney County: 15.2 %Texas County: 16.5 %Vernon County: 14.1 %Warren County: 10.9 %Washington County: 14.2 %Wayne County: 15.3 %Webster County: 15.2 %Worth County: 11.4 %Wright County: 15.6 %St. Louis city: 9.6 %
  • Under 10
  • 10 to 12
  • 12 to 13
  • 13 to 14
  • 14 to 15
  • 15 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

McDonald County: 21.4 %McDonald County21.4Morgan County: 19.9 %Morgan County19.9Scotland County: 19.9 %Scotland County19.9Knox County: 18.9 %Knox County18.9Ozark County: 16.6 %Ozark County16.6Texas County: 16.5 %Texas County16.5Daviess County: 16.1 %Daviess County16.1Barry County: 16 %Barry County16Cedar County: 15.9 %Cedar County15.9Moniteau County: 15.9 %Moniteau County15.9Dallas County: 15.8 %Dallas County15.8Wright County: 15.6 %Wright County15.6Lawrence County: 15.4 %Lawrence County15.4Wayne County: 15.3 %Wayne County15.3Taney County: 15.2 %Taney County15.2Webster County: 15.2 %Webster County15.2Mississippi County: 15.1 %Mississippi County15.1Douglas County: 15 %Douglas County15Howell County: 14.9 %Howell County14.9Gentry County: 14.7 %Gentry County14.7Butler County: 14.6 %Butler County14.6Dunklin County: 14.6 %Dunklin County14.6Pettis County: 14.6 %Pettis County14.6Barton County: 14.5 %Barton County14.5Benton County: 14.5 %Benton County14.5Jasper County: 14.5 %Jasper County14.5Crawford County: 14.4 %Crawford County14.4Grundy County: 14.3 %Grundy County14.3Dade County: 14.2 %Dade County14.2Stoddard County: 14.2 %Stoddard County14.2Washington County: 14.2 %Washington County14.2Montgomery County: 14.1 %Montgomery County14.1Oregon County: 14.1 %Oregon County14.1Vernon County: 14.1 %Vernon County14.1Carter County: 14 %Carter County14Sullivan County: 14 %Sullivan County14Bates County: 13.9 %Bates County13.9Newton County: 13.9 %Newton County13.9Ripley County: 13.9 %Ripley County13.9Shelby County: 13.9 %Shelby County13.9McDonald County: 21.4 %McDonald County21.4Morgan County: 19.9 %Morgan County19.9Scotland County: 19.9 %Scotland County19.9Knox County: 18.9 %Knox County18.9Ozark County: 16.6 %Ozark County16.6Texas County: 16.5 %Texas County16.5Daviess County: 16.1 %Daviess County16.1Barry County: 16 %Barry County16Cedar County: 15.9 %Cedar County15.9Moniteau County: 15.9 %Moniteau County15.9Dallas County: 15.8 %Dallas County15.8Wright County: 15.6 %Wright County15.6Lawrence County: 15.4 %Lawrence County15.4Wayne County: 15.3 %Wayne County15.3Taney County: 15.2 %Taney County15.2Webster County: 15.2 %Webster County15.2Mississippi County: 15.1 %Mississippi County15.1Douglas County: 15 %Douglas County15Howell County: 14.9 %Howell County14.9Gentry County: 14.7 %Gentry County14.7Butler County: 14.6 %Butler County14.6Dunklin County: 14.6 %Dunklin County14.6Pettis County: 14.6 %Pettis County14.6Barton County: 14.5 %Barton County14.5Benton County: 14.5 %Benton County14.5Jasper County: 14.5 %Jasper County14.5Crawford County: 14.4 %Crawford County14.4Grundy County: 14.3 %Grundy County14.3Dade County: 14.2 %Dade County14.2Stoddard County: 14.2 %Stoddard County14.2Washington County: 14.2 %Washington County14.2Montgomery County: 14.1 %Montgomery County14.1Oregon County: 14.1 %Oregon County14.1Vernon County: 14.1 %Vernon County14.1Carter County: 14 %Carter County14Sullivan County: 14 %Sullivan County14Bates County: 13.9 %Bates County13.9Newton County: 13.9 %Newton County13.9Ripley County: 13.9 %Ripley County13.9Shelby County: 13.9 %Shelby County13.9
%. 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
1McDonald County21.4-0.9 pts
2Morgan County19.9-4 pts
2Scotland County19.9-4.1 pts
4Knox County18.9-1 pts
5Ozark County16.6-2 pts
6Texas County16.5-0.5 pts
7Daviess County16.1-2.2 pts
8Barry County16-1 pts
9Cedar County15.9-2.2 pts
9Moniteau County15.9-2.5 pts
11Dallas County15.8-2.2 pts
12Wright County15.6-3 pts
13Lawrence County15.4-3.3 pts
14Wayne County15.3-1.5 pts
15Taney County15.2-1.5 pts
15Webster County15.2+0.6 pts
17Mississippi County15.1-2.8 pts
18Douglas County15-0.1 pts
19Howell County14.9-1 pts
20Gentry County14.7-3 pts
21Butler County14.6-1.8 pts
21Dunklin County14.6-1.7 pts
21Pettis County14.6-2.6 pts
24Barton County14.5-2.9 pts
24Benton County14.5-2.6 pts
24Jasper County14.5-3.1 pts
27Crawford County14.4-3.7 pts
28Grundy County14.3-3.1 pts
29Dade County14.2-2.3 pts
29Stoddard County14.2-1.9 pts
29Washington County14.2-2 pts
32Montgomery County14.1+0.5 pts
32Oregon County14.1-3.7 pts
32Vernon County14.1-0.5 pts
35Carter County14-1.9 pts
35Sullivan County14-0.3 pts
37Bates County13.9-1.5 pts
37Newton County13.9-2.4 pts
37Ripley County13.9-2.9 pts
37Shelby County13.9-1.3 pts
41Audrain County13.8-0.9 pts
42Miller County13.7-1.3 pts
42Polk County13.7-1.1 pts
44Bollinger County13.4-3.6 pts
44Linn County13.4-0.1 pts
44Reynolds County13.4-4.7 pts
47Adair County13.3+0.9 pts
47Mercer County13.3-3.9 pts
47Shannon County13.3-2.3 pts
50Dent County13.2-3.4 pts
50Pemiscot County13.2-1.2 pts
52Harrison County13.1+0.3 pts
52Maries County13.1-2 pts
52Stone County13.1-2.7 pts
55Hickory County13-2.8 pts
56Henry County12.8-1 pts
57Caldwell County12.7-2.9 pts
57Pike County12.7-3 pts
57St. Clair County12.7-1.7 pts
60Lewis County12.6-2.6 pts
60New Madrid County12.6-2.3 pts
62Laclede County12.5-1.9 pts
63Clark County12.4-2.4 pts
63Gasconade County12.4-2.3 pts
65Camden County12.3-3.5 pts
65Jackson County12.3-1.1 pts
67Iron County12.2-3.1 pts
67Schuyler County12.2-3.5 pts
67Scott County12.2-3.1 pts
70Phelps County12.1-1.6 pts
71Monroe County12-2.3 pts
72Livingston County11.9-3.2 pts
72St. Francois County11.9-4.4 pts
74Perry County11.8-0.9 pts
75Greene County11.7-1.4 pts
76Atchison County11.6-3 pts
76Buchanan County11.6-3.1 pts
76Macon County11.6-1.9 pts
76Randolph County11.6-1.7 pts
80Madison County11.5-1.5 pts
81Saline County11.4-1.9 pts
81Worth County11.4-3.2 pts
83Cape Girardeau County11.3-0.1 pts
83DeKalb County11.3-0.7 pts
85Franklin County11-1.2 pts
86Chariton County10.9-2.1 pts
86Ray County10.9-3.3 pts
86Warren County10.9-1.4 pts
89Howard County10.8-1.3 pts
90Carroll County10.7-2.5 pts
90Holt County10.7-1.7 pts
92Nodaway County10.6-0.8 pts
92Putnam County10.6-1.8 pts
94Lafayette County10.5-3.1 pts
95Johnson County10.3-2.1 pts
95Lincoln County10.3-1.1 pts
97Marion County10.2-2 pts
98Pulaski County10-1.7 pts
98Ralls County10-1.4 pts
100Cooper County9.9-2.3 pts
101St. Louis city9.6-1.4 pts
102Christian County9.5-3.6 pts
102Ste. Genevieve County9.5-2.4 pts
104Cole County9.4-1.3 pts
105Boone County9.3-0.4 pts
105Callaway County9.3-2.1 pts
105Clinton County9.3-2.2 pts
108Osage County9.1-1.2 pts
109Jefferson County8.8-2.4 pts
110Andrew County8.7-1.9 pts
111Clay County8.4-0.6 pts
112Cass County7.8-2.5 pts
112St. Louis County7.8-0.7 pts
114Platte County7.3-1 pts
115St. Charles County5.9-1.3 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 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 Missouri 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 Missouri 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/missouri-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 Missouri 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/missouri-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 Missouri 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/missouri-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_missouri_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 Missouri 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/missouri-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 Missouri 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/missouri-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/missouri-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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Questions

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

McDonald County, with 21.4% in 2023, according to the U.S. Census Bureau.

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

St. Charles County, with 5.9% 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 Missouri: more rankings