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)

Scotland County had the highest uninsured rate, under 65 (US model-based estimate) of 115 counties in 2018, at 21.7%. St. Charles County had the lowest, at 6.4%. The median was 13.6% and the figure for Missouri was 11.4%. Source: the U.S. Census Bureau.

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Highest21.7Scotland County
Lowest6.4St. Charles County
Median13.6115 counties
Missouri11.4History

Map of counties, 2018

Adair County: 12.9 %Andrew County: 9.4 %Atchison County: 12.4 %Audrain County: 12.6 %Barry County: 18.3 %Barton County: 14.5 %Bates County: 13.3 %Benton County: 16.5 %Bollinger County: 15.9 %Boone County: 10.6 %Buchanan County: 12.2 %Butler County: 13 %Caldwell County: 12.4 %Callaway County: 11.9 %Camden County: 15.5 %Cape Girardeau County: 11.4 %Carroll County: 12.8 %Carter County: 15.7 %Cass County: 10.2 %Cedar County: 15.2 %Chariton County: 12.7 %Christian County: 11.1 %Clark County: 14.6 %Clay County: 9 %Clinton County: 9.6 %Cole County: 9.9 %Cooper County: 11.4 %Crawford County: 14.6 %Dade County: 15.3 %Dallas County: 16.9 %Daviess County: 17.3 %DeKalb County: 11.2 %Dent County: 16.1 %Douglas County: 15.8 %Dunklin County: 15.3 %Franklin County: 11 %Gasconade County: 13 %Gentry County: 14.1 %Greene County: 12.4 %Grundy County: 14.1 %Harrison County: 14 %Henry County: 12.8 %Hickory County: 17.7 %Holt County: 12.6 %Howard County: 13.1 %Howell County: 14 %Iron County: 12.8 %Jackson County: 12.5 %Jasper County: 15.1 %Jefferson County: 11 %Johnson County: 10.4 %Knox County: 17.5 %Laclede County: 13.6 %Lafayette County: 11.1 %Lawrence County: 15.7 %Lewis County: 11.2 %Lincoln County: 11.6 %Linn County: 14.1 %Livingston County: 12.3 %McDonald County: 20.3 %Macon County: 13.7 %Madison County: 13.2 %Maries County: 15.4 %Marion County: 9.6 %Mercer County: 17 %Miller County: 13.7 %Mississippi County: 14.7 %Moniteau County: 15.2 %Monroe County: 12.9 %Montgomery County: 13.7 %Morgan County: 19.1 %New Madrid County: 13.6 %Newton County: 16 %Nodaway County: 11.6 %Oregon County: 15.2 %Osage County: 10.6 %Ozark County: 17.5 %Pemiscot County: 12.8 %Perry County: 10.9 %Pettis County: 17.4 %Phelps County: 15.1 %Pike County: 12.7 %Platte County: 7.5 %Polk County: 13.8 %Pulaski County: 10.8 %Putnam County: 13.9 %Ralls County: 11.8 %Randolph County: 12.2 %Ray County: 12.5 %Reynolds County: 15 %Ripley County: 16 %St. Charles County: 6.4 %St. Clair County: 16.4 %Ste. Genevieve County: 10.7 %St. Francois County: 11.4 %St. Louis County: 8.3 %Saline County: 12.8 %Schuyler County: 15.3 %Scotland County: 21.7 %Scott County: 11.5 %Shannon County: 17.3 %Shelby County: 14.5 %Stoddard County: 14.1 %Stone County: 15.3 %Sullivan County: 14.4 %Taney County: 16.7 %Texas County: 16.4 %Vernon County: 13.8 %Warren County: 10.3 %Washington County: 13.5 %Wayne County: 15.6 %Webster County: 14.8 %Worth County: 12.5 %Wright County: 17.7 %St. Louis city: 12.6 %
  • Under 11
  • 11 to 13
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  • 16 and over
%, 2018. 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, 2018

Scotland County: 21.7 %Scotland County21.7McDonald County: 20.3 %McDonald County20.3Morgan County: 19.1 %Morgan County19.1Barry County: 18.3 %Barry County18.3Hickory County: 17.7 %Hickory County17.7Wright County: 17.7 %Wright County17.7Knox County: 17.5 %Knox County17.5Ozark County: 17.5 %Ozark County17.5Pettis County: 17.4 %Pettis County17.4Daviess County: 17.3 %Daviess County17.3Shannon County: 17.3 %Shannon County17.3Mercer County: 17 %Mercer County17Dallas County: 16.9 %Dallas County16.9Taney County: 16.7 %Taney County16.7Benton County: 16.5 %Benton County16.5St. Clair County: 16.4 %St. Clair County16.4Texas County: 16.4 %Texas County16.4Dent County: 16.1 %Dent County16.1Newton County: 16 %Newton County16Ripley County: 16 %Ripley County16Bollinger County: 15.9 %Bollinger County15.9Douglas County: 15.8 %Douglas County15.8Carter County: 15.7 %Carter County15.7Lawrence County: 15.7 %Lawrence County15.7Wayne County: 15.6 %Wayne County15.6Camden County: 15.5 %Camden County15.5Maries County: 15.4 %Maries County15.4Dade County: 15.3 %Dade County15.3Dunklin County: 15.3 %Dunklin County15.3Schuyler County: 15.3 %Schuyler County15.3Stone County: 15.3 %Stone County15.3Cedar County: 15.2 %Cedar County15.2Moniteau County: 15.2 %Moniteau County15.2Oregon County: 15.2 %Oregon County15.2Jasper County: 15.1 %Jasper County15.1Phelps County: 15.1 %Phelps County15.1Reynolds County: 15 %Reynolds County15Webster County: 14.8 %Webster County14.8Mississippi County: 14.7 %Mississippi County14.7Clark County: 14.6 %Clark County14.6Scotland County: 21.7 %Scotland County21.7McDonald County: 20.3 %McDonald County20.3Morgan County: 19.1 %Morgan County19.1Barry County: 18.3 %Barry County18.3Hickory County: 17.7 %Hickory County17.7Wright County: 17.7 %Wright County17.7Knox County: 17.5 %Knox County17.5Ozark County: 17.5 %Ozark County17.5Pettis County: 17.4 %Pettis County17.4Daviess County: 17.3 %Daviess County17.3Shannon County: 17.3 %Shannon County17.3Mercer County: 17 %Mercer County17Dallas County: 16.9 %Dallas County16.9Taney County: 16.7 %Taney County16.7Benton County: 16.5 %Benton County16.5St. Clair County: 16.4 %St. Clair County16.4Texas County: 16.4 %Texas County16.4Dent County: 16.1 %Dent County16.1Newton County: 16 %Newton County16Ripley County: 16 %Ripley County16Bollinger County: 15.9 %Bollinger County15.9Douglas County: 15.8 %Douglas County15.8Carter County: 15.7 %Carter County15.7Lawrence County: 15.7 %Lawrence County15.7Wayne County: 15.6 %Wayne County15.6Camden County: 15.5 %Camden County15.5Maries County: 15.4 %Maries County15.4Dade County: 15.3 %Dade County15.3Dunklin County: 15.3 %Dunklin County15.3Schuyler County: 15.3 %Schuyler County15.3Stone County: 15.3 %Stone County15.3Cedar County: 15.2 %Cedar County15.2Moniteau County: 15.2 %Moniteau County15.2Oregon County: 15.2 %Oregon County15.2Jasper County: 15.1 %Jasper County15.1Phelps County: 15.1 %Phelps County15.1Reynolds County: 15 %Reynolds County15Webster County: 14.8 %Webster County14.8Mississippi County: 14.7 %Mississippi County14.7Clark County: 14.6 %Clark County14.6
%. 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

RankCounties2018 (%)Change on 2017
1Scotland County21.7-1.1 pts
2McDonald County20.30 pts
3Morgan County19.1-0.2 pts
4Barry County18.3+0.8 pts
5Hickory County17.7+1.3 pts
5Wright County17.7+1.2 pts
7Knox County17.50 pts
7Ozark County17.5+0.8 pts
9Pettis County17.4+3.1 pts
10Daviess County17.3+1.1 pts
10Shannon County17.3+1 pts
12Mercer County17+1.5 pts
13Dallas County16.9+0.2 pts
14Taney County16.7+0.5 pts
15Benton County16.5+1.6 pts
16St. Clair County16.4+0.4 pts
16Texas County16.4-0.3 pts
18Dent County16.1-0.3 pts
19Newton County16+0.1 pts
19Ripley County16+0.5 pts
21Bollinger County15.9+1.7 pts
22Douglas County15.8+0.6 pts
23Carter County15.7-0.3 pts
23Lawrence County15.7+2.1 pts
25Wayne County15.6+0.6 pts
26Camden County15.5+1.2 pts
27Maries County15.4+0.3 pts
28Dade County15.3+0.4 pts
28Dunklin County15.3+2.1 pts
28Schuyler County15.3+0.3 pts
28Stone County15.3+0.7 pts
32Cedar County15.2+0.6 pts
32Moniteau County15.2-0.3 pts
32Oregon County15.2+0.5 pts
35Jasper County15.1+0.9 pts
35Phelps County15.1+1.2 pts
37Reynolds County15+0.1 pts
38Webster County14.80 pts
39Mississippi County14.7+1.3 pts
40Clark County14.6+0.8 pts
40Crawford County14.6-0.2 pts
42Barton County14.5+0.1 pts
42Shelby County14.5+0.7 pts
44Sullivan County14.4-1 pts
45Gentry County14.1+2 pts
45Grundy County14.1+0.5 pts
45Linn County14.1+1.7 pts
45Stoddard County14.1+1.6 pts
49Harrison County14-0.7 pts
49Howell County14+1.1 pts
51Putnam County13.9-0.1 pts
52Polk County13.8+0.3 pts
52Vernon County13.8+0.7 pts
54Macon County13.7+1.6 pts
54Miller County13.7+0.5 pts
54Montgomery County13.7+0.7 pts
57Laclede County13.6-0.1 pts
57New Madrid County13.6+0.1 pts
59Washington County13.5+0.8 pts
60Bates County13.3+0.5 pts
61Madison County13.2+0.5 pts
62Howard County13.1+0.5 pts
63Butler County13+0.2 pts
63Gasconade County13+1 pts
65Adair County12.9+2.3 pts
65Monroe County12.9+0.2 pts
67Carroll County12.8-0.4 pts
67Henry County12.8+0.1 pts
67Iron County12.8+0.1 pts
67Pemiscot County12.8+1.1 pts
67Saline County12.80 pts
72Chariton County12.7+0.7 pts
72Pike County12.7+0.8 pts
74Audrain County12.6+0.3 pts
74Holt County12.6-0.6 pts
74St. Louis city12.6+0.1 pts
77Jackson County12.5-0.1 pts
77Ray County12.5+1.2 pts
77Worth County12.5+0.2 pts
80Atchison County12.4+0.4 pts
80Caldwell County12.40 pts
80Greene County12.4+1.1 pts
83Livingston County12.3+0.1 pts
84Buchanan County12.2+0.7 pts
84Randolph County12.2+0.6 pts
86Callaway County11.9+1.3 pts
87Ralls County11.8+1.2 pts
88Lincoln County11.6+1.1 pts
88Nodaway County11.6+0.5 pts
90Scott County11.5-0.5 pts
91Cape Girardeau County11.4+1 pts
91Cooper County11.4+0.8 pts
91St. Francois County11.4+0.2 pts
94DeKalb County11.2+0.7 pts
94Lewis County11.2-0.7 pts
96Christian County11.1+1 pts
96Lafayette County11.1+0.7 pts
98Franklin County11+0.6 pts
98Jefferson County11+1 pts
100Perry County10.9+2.3 pts
101Pulaski County10.8-0.6 pts
102Ste. Genevieve County10.7-0.2 pts
103Boone County10.6+0.5 pts
103Osage County10.6+0.7 pts
105Johnson County10.4+0.4 pts
106Warren County10.3-0.2 pts
107Cass County10.2+1.4 pts
108Cole County9.9-0.2 pts
109Clinton County9.6+0.4 pts
109Marion County9.6-0.4 pts
111Andrew County9.40 pts
112Clay County9+0.4 pts
113St. Louis County8.3+0.3 pts
114Platte County7.5+0.9 pts
115St. Charles County6.4+0.2 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-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, under 65, all races, both sexes, all income levels, states and counties (Counties in Missouri by uninsured rate, under 65 (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, under 65, all races, both sexes, all income levels, states and counties, Counties in Missouri by uninsured rate, under 65 (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-under-65/missouri-counties?period=2018. 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), 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-under-65/missouri-counties?period=2018.

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), 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-under-65/missouri-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_missouri_by_2018,
  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), 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-under-65/missouri-counties?period=2018. 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-2018-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), 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-under-65/missouri-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/missouri-counties?period=2018.
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-2018-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)?

Scotland County, with 21.7% in 2018, according to the U.S. Census Bureau.

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

St. Charles County, with 6.4% 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, 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