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 2019, at 27.3%. St. Charles County had the lowest, at 7.9%. The median was 16.9% and the figure for Missouri was 14%. Source: the U.S. Census Bureau.

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Highest27.3McDonald County
Lowest7.9St. Charles County
Median16.9115 counties
Missouri14History

Map of counties, 2019

Adair County: 17.5 %Andrew County: 12.5 %Atchison County: 14.1 %Audrain County: 16.7 %Barry County: 22.3 %Barton County: 19.2 %Bates County: 17.1 %Benton County: 18.8 %Bollinger County: 19.3 %Boone County: 12.4 %Buchanan County: 16.6 %Butler County: 18.3 %Caldwell County: 16.5 %Callaway County: 13.1 %Camden County: 18.1 %Cape Girardeau County: 13.6 %Carroll County: 15.7 %Carter County: 18.3 %Cass County: 11.8 %Cedar County: 20 %Chariton County: 15.2 %Christian County: 14.5 %Clark County: 17.4 %Clay County: 11 %Clinton County: 13.7 %Cole County: 12.2 %Cooper County: 13.6 %Crawford County: 18.8 %Dade County: 19.7 %Dallas County: 20.3 %Daviess County: 21.8 %DeKalb County: 13.4 %Dent County: 20 %Douglas County: 21.2 %Dunklin County: 19.3 %Franklin County: 13.7 %Gasconade County: 16.4 %Gentry County: 15.7 %Greene County: 15.1 %Grundy County: 17.9 %Harrison County: 16.2 %Henry County: 16.9 %Hickory County: 20 %Holt County: 16.1 %Howard County: 15.2 %Howell County: 19.6 %Iron County: 16.3 %Jackson County: 15.5 %Jasper County: 20.4 %Jefferson County: 13.4 %Johnson County: 14.1 %Knox County: 23.2 %Laclede County: 17 %Lafayette County: 13.4 %Lawrence County: 21.2 %Lewis County: 14.5 %Lincoln County: 13.6 %Linn County: 15.6 %Livingston County: 15.1 %McDonald County: 27.3 %Macon County: 16.5 %Madison County: 16 %Maries County: 18.5 %Marion County: 13.2 %Mercer County: 19.4 %Miller County: 18.9 %Mississippi County: 18.1 %Moniteau County: 19.7 %Monroe County: 14.9 %Montgomery County: 16.6 %Morgan County: 24.2 %New Madrid County: 17 %Newton County: 19.1 %Nodaway County: 14.8 %Oregon County: 19.7 %Osage County: 12.5 %Ozark County: 22.8 %Pemiscot County: 16.8 %Perry County: 12.9 %Pettis County: 18.6 %Phelps County: 18.3 %Pike County: 15.2 %Platte County: 9.4 %Polk County: 18.9 %Pulaski County: 14.8 %Putnam County: 17.9 %Ralls County: 12.5 %Randolph County: 15.2 %Ray County: 14.3 %Reynolds County: 18.6 %Ripley County: 20.7 %St. Charles County: 7.9 %St. Clair County: 19.1 %Ste. Genevieve County: 12.1 %St. Francois County: 15.2 %St. Louis County: 10 %Saline County: 17 %Schuyler County: 18.7 %Scotland County: 25.6 %Scott County: 16.9 %Shannon County: 22.1 %Shelby County: 16.9 %Stoddard County: 17.4 %Stone County: 18.7 %Sullivan County: 17.2 %Taney County: 21.6 %Texas County: 23.1 %Vernon County: 17.6 %Warren County: 13.3 %Washington County: 18.1 %Wayne County: 19.9 %Webster County: 18.3 %Worth County: 15.6 %Wright County: 22.6 %St. Louis city: 14.4 %
  • Under 14
  • 14 to 15
  • 15 to 17
  • 17 to 19
  • 19 to 20
  • 20 and over
%, 2019. 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, 2019

McDonald County: 27.3 %McDonald County27.3Scotland County: 25.6 %Scotland County25.6Morgan County: 24.2 %Morgan County24.2Knox County: 23.2 %Knox County23.2Texas County: 23.1 %Texas County23.1Ozark County: 22.8 %Ozark County22.8Wright County: 22.6 %Wright County22.6Barry County: 22.3 %Barry County22.3Shannon County: 22.1 %Shannon County22.1Daviess County: 21.8 %Daviess County21.8Taney County: 21.6 %Taney County21.6Douglas County: 21.2 %Douglas County21.2Lawrence County: 21.2 %Lawrence County21.2Ripley County: 20.7 %Ripley County20.7Jasper County: 20.4 %Jasper County20.4Dallas County: 20.3 %Dallas County20.3Cedar County: 20 %Cedar County20Dent County: 20 %Dent County20Hickory County: 20 %Hickory County20Wayne County: 19.9 %Wayne County19.9Dade County: 19.7 %Dade County19.7Moniteau County: 19.7 %Moniteau County19.7Oregon County: 19.7 %Oregon County19.7Howell County: 19.6 %Howell County19.6Mercer County: 19.4 %Mercer County19.4Bollinger County: 19.3 %Bollinger County19.3Dunklin County: 19.3 %Dunklin County19.3Barton County: 19.2 %Barton County19.2Newton County: 19.1 %Newton County19.1St. Clair County: 19.1 %St. Clair County19.1Miller County: 18.9 %Miller County18.9Polk County: 18.9 %Polk County18.9Benton County: 18.8 %Benton County18.8Crawford County: 18.8 %Crawford County18.8Schuyler County: 18.7 %Schuyler County18.7Stone County: 18.7 %Stone County18.7Pettis County: 18.6 %Pettis County18.6Reynolds County: 18.6 %Reynolds County18.6Maries County: 18.5 %Maries County18.5Butler County: 18.3 %Butler County18.3McDonald County: 27.3 %McDonald County27.3Scotland County: 25.6 %Scotland County25.6Morgan County: 24.2 %Morgan County24.2Knox County: 23.2 %Knox County23.2Texas County: 23.1 %Texas County23.1Ozark County: 22.8 %Ozark County22.8Wright County: 22.6 %Wright County22.6Barry County: 22.3 %Barry County22.3Shannon County: 22.1 %Shannon County22.1Daviess County: 21.8 %Daviess County21.8Taney County: 21.6 %Taney County21.6Douglas County: 21.2 %Douglas County21.2Lawrence County: 21.2 %Lawrence County21.2Ripley County: 20.7 %Ripley County20.7Jasper County: 20.4 %Jasper County20.4Dallas County: 20.3 %Dallas County20.3Cedar County: 20 %Cedar County20Dent County: 20 %Dent County20Hickory County: 20 %Hickory County20Wayne County: 19.9 %Wayne County19.9Dade County: 19.7 %Dade County19.7Moniteau County: 19.7 %Moniteau County19.7Oregon County: 19.7 %Oregon County19.7Howell County: 19.6 %Howell County19.6Mercer County: 19.4 %Mercer County19.4Bollinger County: 19.3 %Bollinger County19.3Dunklin County: 19.3 %Dunklin County19.3Barton County: 19.2 %Barton County19.2Newton County: 19.1 %Newton County19.1St. Clair County: 19.1 %St. Clair County19.1Miller County: 18.9 %Miller County18.9Polk County: 18.9 %Polk County18.9Benton County: 18.8 %Benton County18.8Crawford County: 18.8 %Crawford County18.8Schuyler County: 18.7 %Schuyler County18.7Stone County: 18.7 %Stone County18.7Pettis County: 18.6 %Pettis County18.6Reynolds County: 18.6 %Reynolds County18.6Maries County: 18.5 %Maries County18.5Butler County: 18.3 %Butler County18.3
%. 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

RankCounties2019 (%)Change on 2018
1McDonald County27.3+2.3 pts
2Scotland County25.6+1.5 pts
3Morgan County24.2+1.5 pts
4Knox County23.2+2.8 pts
5Texas County23.1+3.4 pts
6Ozark County22.8+2 pts
7Wright County22.6+1.6 pts
8Barry County22.3+0.6 pts
9Shannon County22.1+1 pts
10Daviess County21.8+1.5 pts
11Taney County21.6+1.4 pts
12Douglas County21.2+2.1 pts
12Lawrence County21.2+2.2 pts
14Ripley County20.7+1.1 pts
15Jasper County20.4+1.6 pts
16Dallas County20.3+0.4 pts
17Cedar County20+1.2 pts
17Dent County20+0.8 pts
17Hickory County20-0.2 pts
20Wayne County19.9+1.1 pts
21Dade County19.7+2 pts
21Moniteau County19.7+1.8 pts
21Oregon County19.7+1.4 pts
24Howell County19.6+2.6 pts
25Mercer County19.4-0.1 pts
26Bollinger County19.3+0.5 pts
26Dunklin County19.30 pts
28Barton County19.2+1.4 pts
29Newton County19.1+0.3 pts
29St. Clair County19.1-0.1 pts
31Miller County18.9+2.3 pts
31Polk County18.9+2.3 pts
33Benton County18.8+0.2 pts
33Crawford County18.8+1.1 pts
35Schuyler County18.7+0.6 pts
35Stone County18.7+1.2 pts
37Pettis County18.6-2.8 pts
37Reynolds County18.6+0.9 pts
39Maries County18.5+0.6 pts
40Butler County18.3+2.5 pts
40Carter County18.3-0.7 pts
40Phelps County18.3+0.3 pts
40Webster County18.3+0.1 pts
44Camden County18.10 pts
44Mississippi County18.1-0.1 pts
44Washington County18.1+1.5 pts
47Grundy County17.9+1 pts
47Putnam County17.9+2.2 pts
49Vernon County17.6+1 pts
50Adair County17.5+2.5 pts
51Clark County17.4+0.6 pts
51Stoddard County17.4+0.5 pts
53Sullivan County17.2+0.4 pts
54Bates County17.1+1.6 pts
55Laclede County17+0.7 pts
55New Madrid County17+0.4 pts
55Saline County17+1.5 pts
58Henry County16.9+1.7 pts
58Scott County16.9+3 pts
58Shelby County16.9-0.3 pts
61Pemiscot County16.8+0.7 pts
62Audrain County16.7+1.8 pts
63Buchanan County16.6+1.8 pts
63Montgomery County16.6+0.4 pts
65Caldwell County16.5+1.9 pts
65Macon County16.5+0.4 pts
67Gasconade County16.4+1.3 pts
68Iron County16.3+0.9 pts
69Harrison County16.2-0.7 pts
70Holt County16.1+1.7 pts
71Madison County160 pts
72Carroll County15.7+0.3 pts
72Gentry County15.7-0.7 pts
74Linn County15.6-1 pts
74Worth County15.6+1.5 pts
76Jackson County15.5+0.5 pts
77Chariton County15.2+0.4 pts
77Howard County15.20 pts
77Pike County15.2-0.4 pts
77Randolph County15.2+0.3 pts
77St. Francois County15.2+1.4 pts
82Greene County15.1+0.4 pts
82Livingston County15.1+0.7 pts
84Monroe County14.9-0.1 pts
85Nodaway County14.8+1.8 pts
85Pulaski County14.8+1.7 pts
87Christian County14.5+0.8 pts
87Lewis County14.5+1.5 pts
89St. Louis city14.4-0.4 pts
90Ray County14.3-0.4 pts
91Atchison County14.1-0.3 pts
91Johnson County14.1+1.9 pts
93Clinton County13.7+2.6 pts
93Franklin County13.7+0.6 pts
95Cape Girardeau County13.6+0.1 pts
95Cooper County13.6+0.5 pts
95Lincoln County13.6-0.3 pts
98DeKalb County13.4+0.3 pts
98Jefferson County13.4+0.1 pts
98Lafayette County13.4+0.3 pts
101Warren County13.3+1 pts
102Marion County13.2+1.6 pts
103Callaway County13.1-0.9 pts
104Perry County12.90 pts
105Andrew County12.5+1.5 pts
105Osage County12.5+0.4 pts
105Ralls County12.5-1.1 pts
108Boone County12.4+0.1 pts
109Cole County12.2+0.7 pts
110Ste. Genevieve County12.1-0.3 pts
111Cass County11.8-0.2 pts
112Clay County11+0.3 pts
113St. Louis County100 pts
114Platte County9.4+0.9 pts
115St. Charles County7.9+0.4 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-2019-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), 2019) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-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), 2019. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/missouri-counties?period=2019. 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), 2019. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/missouri-counties?period=2019.

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), 2019 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/missouri-counties?period=2019 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_missouri_by_2019,
  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), 2019}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/missouri-counties?period=2019. 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-2019-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), 2019
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-2019-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/missouri-counties?period=2019
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/missouri-counties?period=2019.
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-2019-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 27.3% in 2019, 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 7.9% in 2019.

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