Data / Rankings / Uninsured rate, under 65 (US model-based estimate) / Counties in Missouri

Counties in Missouri by uninsured rate, under 65 (US model-based estimate)

Morgan County had the highest uninsured rate, under 65 (US model-based estimate) of 115 counties in 2021, at 22%. St. Charles County had the lowest, at 6.2%. The median was 13.9% and the figure for Missouri was 11.4%. Source: the U.S. Census Bureau.

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Highest22Morgan County
Lowest6.2St. Charles County
Median13.9115 counties
Missouri11.4History

Map of counties, 2021

Adair County: 13.7 %Andrew County: 10.7 %Atchison County: 15.3 %Audrain County: 13.3 %Barry County: 15.9 %Barton County: 15 %Bates County: 14.9 %Benton County: 15.1 %Bollinger County: 15.4 %Boone County: 11 %Buchanan County: 12.9 %Butler County: 14.6 %Caldwell County: 15.3 %Callaway County: 11.6 %Camden County: 14.8 %Cape Girardeau County: 11.6 %Carroll County: 13.1 %Carter County: 15.1 %Cass County: 9.6 %Cedar County: 14.9 %Chariton County: 12.8 %Christian County: 11.6 %Clark County: 15 %Clay County: 8.8 %Clinton County: 11.6 %Cole County: 10.4 %Cooper County: 10.7 %Crawford County: 15.2 %Dade County: 15.4 %Dallas County: 16.1 %Daviess County: 16.1 %DeKalb County: 11.2 %Dent County: 14.3 %Douglas County: 13.8 %Dunklin County: 15.3 %Franklin County: 11.7 %Gasconade County: 13.5 %Gentry County: 16.6 %Greene County: 11.8 %Grundy County: 16.9 %Harrison County: 12.1 %Henry County: 13.6 %Hickory County: 14.7 %Holt County: 12.5 %Howard County: 12.4 %Howell County: 14.7 %Iron County: 14.6 %Jackson County: 13.3 %Jasper County: 15.3 %Jefferson County: 9.7 %Johnson County: 11 %Knox County: 17.1 %Laclede County: 12.6 %Lafayette County: 12.1 %Lawrence County: 15.9 %Lewis County: 14.9 %Lincoln County: 12.2 %Linn County: 12.7 %Livingston County: 12.2 %McDonald County: 20.8 %Macon County: 13.6 %Madison County: 12.7 %Maries County: 17.6 %Marion County: 11.6 %Mercer County: 14.8 %Miller County: 13.9 %Mississippi County: 14.5 %Moniteau County: 15.4 %Monroe County: 14.3 %Montgomery County: 13.8 %Morgan County: 22 %New Madrid County: 14 %Newton County: 15 %Nodaway County: 10.5 %Oregon County: 14.7 %Osage County: 9.9 %Ozark County: 17.8 %Pemiscot County: 13.9 %Perry County: 12.3 %Pettis County: 15.2 %Phelps County: 14.2 %Pike County: 13.2 %Platte County: 8.5 %Polk County: 13.3 %Pulaski County: 11.6 %Putnam County: 12.7 %Ralls County: 10.9 %Randolph County: 11.1 %Ray County: 11.8 %Reynolds County: 16.3 %Ripley County: 15.1 %St. Charles County: 6.2 %St. Clair County: 14.7 %Ste. Genevieve County: 10.8 %St. Francois County: 12.7 %St. Louis County: 7.7 %Saline County: 12.8 %Schuyler County: 13 %Scotland County: 21.4 %Scott County: 13.6 %Shannon County: 16.4 %Shelby County: 14.6 %Stoddard County: 15.8 %Stone County: 14.2 %Sullivan County: 14.8 %Taney County: 15.4 %Texas County: 16.1 %Vernon County: 14.9 %Warren County: 11.7 %Washington County: 14.6 %Wayne County: 16.4 %Webster County: 14.5 %Worth County: 12.9 %Wright County: 17 %St. Louis city: 12.6 %
  • Under 12
  • 12 to 13
  • 13 to 14
  • 14 to 15
  • 15 and over
%, 2021. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Morgan County: 22 %Morgan County22Scotland County: 21.4 %Scotland County21.4McDonald County: 20.8 %McDonald County20.8Ozark County: 17.8 %Ozark County17.8Maries County: 17.6 %Maries County17.6Knox County: 17.1 %Knox County17.1Wright County: 17 %Wright County17Grundy County: 16.9 %Grundy County16.9Gentry County: 16.6 %Gentry County16.6Shannon County: 16.4 %Shannon County16.4Wayne County: 16.4 %Wayne County16.4Reynolds County: 16.3 %Reynolds County16.3Dallas County: 16.1 %Dallas County16.1Daviess County: 16.1 %Daviess County16.1Texas County: 16.1 %Texas County16.1Barry County: 15.9 %Barry County15.9Lawrence County: 15.9 %Lawrence County15.9Stoddard County: 15.8 %Stoddard County15.8Bollinger County: 15.4 %Bollinger County15.4Dade County: 15.4 %Dade County15.4Moniteau County: 15.4 %Moniteau County15.4Taney County: 15.4 %Taney County15.4Atchison County: 15.3 %Atchison County15.3Caldwell County: 15.3 %Caldwell County15.3Dunklin County: 15.3 %Dunklin County15.3Jasper County: 15.3 %Jasper County15.3Crawford County: 15.2 %Crawford County15.2Pettis County: 15.2 %Pettis County15.2Benton County: 15.1 %Benton County15.1Carter County: 15.1 %Carter County15.1Ripley County: 15.1 %Ripley County15.1Barton County: 15 %Barton County15Clark County: 15 %Clark County15Newton County: 15 %Newton County15Bates County: 14.9 %Bates County14.9Cedar County: 14.9 %Cedar County14.9Lewis County: 14.9 %Lewis County14.9Vernon County: 14.9 %Vernon County14.9Camden County: 14.8 %Camden County14.8Mercer County: 14.8 %Mercer County14.8Morgan County: 22 %Morgan County22Scotland County: 21.4 %Scotland County21.4McDonald County: 20.8 %McDonald County20.8Ozark County: 17.8 %Ozark County17.8Maries County: 17.6 %Maries County17.6Knox County: 17.1 %Knox County17.1Wright County: 17 %Wright County17Grundy County: 16.9 %Grundy County16.9Gentry County: 16.6 %Gentry County16.6Shannon County: 16.4 %Shannon County16.4Wayne County: 16.4 %Wayne County16.4Reynolds County: 16.3 %Reynolds County16.3Dallas County: 16.1 %Dallas County16.1Daviess County: 16.1 %Daviess County16.1Texas County: 16.1 %Texas County16.1Barry County: 15.9 %Barry County15.9Lawrence County: 15.9 %Lawrence County15.9Stoddard County: 15.8 %Stoddard County15.8Bollinger County: 15.4 %Bollinger County15.4Dade County: 15.4 %Dade County15.4Moniteau County: 15.4 %Moniteau County15.4Taney County: 15.4 %Taney County15.4Atchison County: 15.3 %Atchison County15.3Caldwell County: 15.3 %Caldwell County15.3Dunklin County: 15.3 %Dunklin County15.3Jasper County: 15.3 %Jasper County15.3Crawford County: 15.2 %Crawford County15.2Pettis County: 15.2 %Pettis County15.2Benton County: 15.1 %Benton County15.1Carter County: 15.1 %Carter County15.1Ripley County: 15.1 %Ripley County15.1Barton County: 15 %Barton County15Clark County: 15 %Clark County15Newton County: 15 %Newton County15Bates County: 14.9 %Bates County14.9Cedar County: 14.9 %Cedar County14.9Lewis County: 14.9 %Lewis County14.9Vernon County: 14.9 %Vernon County14.9Camden County: 14.8 %Camden County14.8Mercer County: 14.8 %Mercer County14.8
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)Change on 2020
1Morgan County22-0.3 pts
2Scotland County21.4-1.9 pts
3McDonald County20.8-1.9 pts
4Ozark County17.8+1.7 pts
5Maries County17.6+1.2 pts
6Knox County17.1+1.7 pts
7Wright County17+0.8 pts
8Grundy County16.9+0.2 pts
9Gentry County16.6+1.1 pts
10Shannon County16.4-2.4 pts
10Wayne County16.4+0.9 pts
12Reynolds County16.3+0.2 pts
13Dallas County16.1-1.2 pts
13Daviess County16.1-2.6 pts
13Texas County16.1-0.2 pts
16Barry County15.9-1.3 pts
16Lawrence County15.9-1.8 pts
18Stoddard County15.8-1.1 pts
19Bollinger County15.4-1.5 pts
19Dade County15.4-0.1 pts
19Moniteau County15.4-3.9 pts
19Taney County15.4-2.7 pts
23Atchison County15.3+0.3 pts
23Caldwell County15.3-0.7 pts
23Dunklin County15.3-2.7 pts
23Jasper County15.3-0.8 pts
27Crawford County15.2-0.8 pts
27Pettis County15.2-0.9 pts
29Benton County15.1-0.4 pts
29Carter County15.1-2.6 pts
29Ripley County15.1-1 pts
32Barton County15-1.4 pts
32Clark County15-1.5 pts
32Newton County15-1.2 pts
35Bates County14.9-0.7 pts
35Cedar County14.9-1.2 pts
35Lewis County14.9+1.5 pts
35Vernon County14.9-0.2 pts
39Camden County14.8-0.3 pts
39Mercer County14.8-2.2 pts
39Sullivan County14.8-1.3 pts
42Hickory County14.7-2.2 pts
42Howell County14.7-0.5 pts
42Oregon County14.7-1 pts
42St. Clair County14.7-1.5 pts
46Butler County14.6-0.3 pts
46Iron County14.6-1.8 pts
46Shelby County14.6-0.4 pts
46Washington County14.6-0.3 pts
50Mississippi County14.5-0.3 pts
50Webster County14.5-3.4 pts
52Dent County14.3-2.5 pts
52Monroe County14.3-0.6 pts
54Phelps County14.2-2.2 pts
54Stone County14.2-2.4 pts
56New Madrid County14-0.9 pts
57Miller County13.9-3 pts
57Pemiscot County13.9+0.1 pts
59Douglas County13.8-0.9 pts
59Montgomery County13.8-1 pts
61Adair County13.7-2.8 pts
62Henry County13.6-1.3 pts
62Macon County13.6-0.1 pts
62Scott County13.6+0.1 pts
65Gasconade County13.5-0.7 pts
66Audrain County13.3-2.7 pts
66Jackson County13.3+0.3 pts
66Polk County13.3-1.4 pts
69Pike County13.2-1.6 pts
70Carroll County13.1-1.6 pts
71Schuyler County13-2.8 pts
72Buchanan County12.9-0.7 pts
72Worth County12.9-1.4 pts
74Chariton County12.8-1.4 pts
74Saline County12.8-2.3 pts
76Linn County12.7-1.7 pts
76Madison County12.7-2 pts
76Putnam County12.7-2.5 pts
76St. Francois County12.7-1 pts
80Laclede County12.6-1.5 pts
80St. Louis city12.6+0.7 pts
82Holt County12.5-2.4 pts
83Howard County12.4-0.1 pts
84Perry County12.3+0.2 pts
85Lincoln County12.2+0.2 pts
85Livingston County12.2-2.7 pts
87Harrison County12.1-1.7 pts
87Lafayette County12.1-0.5 pts
89Greene County11.8-2.4 pts
89Ray County11.8-1.6 pts
91Franklin County11.7-0.3 pts
91Warren County11.7-1.8 pts
93Callaway County11.6-1.1 pts
93Cape Girardeau County11.6-0.6 pts
93Christian County11.6-1.5 pts
93Clinton County11.6-1.3 pts
93Marion County11.6-1.3 pts
93Pulaski County11.6-1.1 pts
99DeKalb County11.2-0.5 pts
100Randolph County11.1-2.5 pts
101Boone County11+0.3 pts
101Johnson County11-2.1 pts
103Ralls County10.9-1.7 pts
104Ste. Genevieve County10.8-1.5 pts
105Andrew County10.7-1.8 pts
105Cooper County10.7-1.4 pts
107Nodaway County10.5-2.6 pts
108Cole County10.40 pts
109Osage County9.9-1.9 pts
110Jefferson County9.7-1.7 pts
111Cass County9.6-2.3 pts
112Clay County8.8-1.2 pts
113Platte County8.5+0.1 pts
114St. Louis County7.7-0.8 pts
115St. Charles County6.2-0.4 pts

Other periods

About this ranking

People under 65 without health insurance coverage of any kind, as a percentage of all people under 65. 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. People 65 and over are left out because nearly all of them have Medicare.

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, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-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, under 65, all races, both sexes, all income levels, states and counties (Counties in Missouri by uninsured rate, under 65 (US model-based estimate), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Missouri by uninsured rate, under 65 (US model-based estimate), 2021. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/missouri-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Counties in Missouri by uninsured rate, under 65 (US model-based estimate), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/missouri-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Missouri by uninsured rate, under 65 (US model-based estimate), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/missouri-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_missouri_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Missouri by uninsured rate, under 65 (US model-based estimate), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/missouri-counties?period=2021. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Missouri by uninsured rate, under 65 (US model-based estimate), 2021
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-2021-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/missouri-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/missouri-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, under 65 (US model-based estimate)?

Morgan County, with 22% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 65 (US model-based estimate)?

St. Charles County, with 6.2% in 2021.

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, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 65 (US model-based estimate): other rankings

Counties in Missouri: more rankings