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

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

Scott County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 82 counties in 2018, at 26.1%. Madison County had the lowest, at 12%. The median was 19.7% and the figure for Mississippi was 18.5%. Source: the U.S. Census Bureau.

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Highest26.1Scott County
Lowest12Madison County
Median19.782 counties
Mississippi18.5History

Map of counties, 2018

Adams County: 20.8 %Alcorn County: 20.1 %Amite County: 20.3 %Attala County: 19.1 %Benton County: 19.3 %Bolivar County: 21.4 %Calhoun County: 23.4 %Carroll County: 19 %Chickasaw County: 22.1 %Choctaw County: 17 %Claiborne County: 19.2 %Clarke County: 19.3 %Clay County: 18.8 %Coahoma County: 19.4 %Copiah County: 19.8 %Covington County: 20.3 %DeSoto County: 15.4 %Forrest County: 19.7 %Franklin County: 17.8 %George County: 19.7 %Greene County: 18.6 %Grenada County: 18 %Hancock County: 19.2 %Harrison County: 20.4 %Hinds County: 16.9 %Holmes County: 19.7 %Humphreys County: 20.4 %Issaquena County: 20.3 %Itawamba County: 19.9 %Jackson County: 18.4 %Jasper County: 18.2 %Jefferson County: 21.6 %Jefferson Davis County: 24.8 %Jones County: 20.6 %Kemper County: 23.3 %Lafayette County: 17.1 %Lamar County: 15.9 %Lauderdale County: 16.7 %Lawrence County: 18.4 %Leake County: 24 %Lee County: 17.9 %Leflore County: 18.9 %Lincoln County: 19.2 %Lowndes County: 18.2 %Madison County: 12 %Marion County: 21.8 %Marshall County: 17.6 %Monroe County: 19.7 %Montgomery County: 17.8 %Neshoba County: 23.4 %Newton County: 21.3 %Noxubee County: 23 %Oktibbeha County: 18.4 %Panola County: 19.4 %Pearl River County: 19.2 %Perry County: 21.1 %Pike County: 21.6 %Pontotoc County: 20.1 %Prentiss County: 20.6 %Quitman County: 21.5 %Rankin County: 13.3 %Scott County: 26.1 %Sharkey County: 21.8 %Simpson County: 21.2 %Smith County: 20.4 %Stone County: 19.6 %Sunflower County: 20.1 %Tallahatchie County: 18.9 %Tate County: 20.5 %Tippah County: 21 %Tishomingo County: 20.2 %Tunica County: 16.7 %Union County: 20 %Walthall County: 22.1 %Warren County: 16.4 %Washington County: 20.2 %Wayne County: 21.3 %Webster County: 18.1 %Wilkinson County: 21.7 %Winston County: 20.5 %Yalobusha County: 17.2 %Yazoo County: 19.3 %
  • Under 18
  • 18 to 19
  • 19 to 20
  • 20 to 22
  • 22 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

Scott County: 26.1 %Scott County26.1Jefferson Davis County: 24.8 %Jefferson Davis County24.8Leake County: 24 %Leake County24Calhoun County: 23.4 %Calhoun County23.4Neshoba County: 23.4 %Neshoba County23.4Kemper County: 23.3 %Kemper County23.3Noxubee County: 23 %Noxubee County23Chickasaw County: 22.1 %Chickasaw County22.1Walthall County: 22.1 %Walthall County22.1Marion County: 21.8 %Marion County21.8Sharkey County: 21.8 %Sharkey County21.8Wilkinson County: 21.7 %Wilkinson County21.7Jefferson County: 21.6 %Jefferson County21.6Pike County: 21.6 %Pike County21.6Quitman County: 21.5 %Quitman County21.5Bolivar County: 21.4 %Bolivar County21.4Newton County: 21.3 %Newton County21.3Wayne County: 21.3 %Wayne County21.3Simpson County: 21.2 %Simpson County21.2Perry County: 21.1 %Perry County21.1Tippah County: 21 %Tippah County21Adams County: 20.8 %Adams County20.8Jones County: 20.6 %Jones County20.6Prentiss County: 20.6 %Prentiss County20.6Tate County: 20.5 %Tate County20.5Winston County: 20.5 %Winston County20.5Harrison County: 20.4 %Harrison County20.4Humphreys County: 20.4 %Humphreys County20.4Smith County: 20.4 %Smith County20.4Amite County: 20.3 %Amite County20.3Covington County: 20.3 %Covington County20.3Issaquena County: 20.3 %Issaquena County20.3Tishomingo County: 20.2 %Tishomingo County20.2Washington County: 20.2 %Washington County20.2Alcorn County: 20.1 %Alcorn County20.1Pontotoc County: 20.1 %Pontotoc County20.1Sunflower County: 20.1 %Sunflower County20.1Union County: 20 %Union County20Itawamba County: 19.9 %Itawamba County19.9Copiah County: 19.8 %Copiah County19.8Scott County: 26.1 %Scott County26.1Jefferson Davis County: 24.8 %Jefferson Davis County24.8Leake County: 24 %Leake County24Calhoun County: 23.4 %Calhoun County23.4Neshoba County: 23.4 %Neshoba County23.4Kemper County: 23.3 %Kemper County23.3Noxubee County: 23 %Noxubee County23Chickasaw County: 22.1 %Chickasaw County22.1Walthall County: 22.1 %Walthall County22.1Marion County: 21.8 %Marion County21.8Sharkey County: 21.8 %Sharkey County21.8Wilkinson County: 21.7 %Wilkinson County21.7Jefferson County: 21.6 %Jefferson County21.6Pike County: 21.6 %Pike County21.6Quitman County: 21.5 %Quitman County21.5Bolivar County: 21.4 %Bolivar County21.4Newton County: 21.3 %Newton County21.3Wayne County: 21.3 %Wayne County21.3Simpson County: 21.2 %Simpson County21.2Perry County: 21.1 %Perry County21.1Tippah County: 21 %Tippah County21Adams County: 20.8 %Adams County20.8Jones County: 20.6 %Jones County20.6Prentiss County: 20.6 %Prentiss County20.6Tate County: 20.5 %Tate County20.5Winston County: 20.5 %Winston County20.5Harrison County: 20.4 %Harrison County20.4Humphreys County: 20.4 %Humphreys County20.4Smith County: 20.4 %Smith County20.4Amite County: 20.3 %Amite County20.3Covington County: 20.3 %Covington County20.3Issaquena County: 20.3 %Issaquena County20.3Tishomingo County: 20.2 %Tishomingo County20.2Washington County: 20.2 %Washington County20.2Alcorn County: 20.1 %Alcorn County20.1Pontotoc County: 20.1 %Pontotoc County20.1Sunflower County: 20.1 %Sunflower County20.1Union County: 20 %Union County20Itawamba County: 19.9 %Itawamba County19.9Copiah County: 19.8 %Copiah County19.8
%. 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
1Scott County26.1-0.5 pts
2Jefferson Davis County24.8+3.6 pts
3Leake County24-0.1 pts
4Calhoun County23.4-0.1 pts
4Neshoba County23.4-0.7 pts
6Kemper County23.3-1.6 pts
7Noxubee County23+0.4 pts
8Chickasaw County22.1-0.3 pts
8Walthall County22.1-0.7 pts
10Marion County21.8+1.3 pts
10Sharkey County21.8+0.8 pts
12Wilkinson County21.7+1 pts
13Jefferson County21.6+2.7 pts
13Pike County21.6+1.3 pts
15Quitman County21.5+0.6 pts
16Bolivar County21.4+1 pts
17Newton County21.3-0.2 pts
17Wayne County21.3+0.4 pts
19Simpson County21.2+1.6 pts
20Perry County21.1+0.2 pts
21Tippah County21+1.6 pts
22Adams County20.8+2.1 pts
23Jones County20.6-1.3 pts
23Prentiss County20.6+0.9 pts
25Tate County20.5+0.9 pts
25Winston County20.5-0.9 pts
27Harrison County20.4+0.4 pts
27Humphreys County20.4-0.1 pts
27Smith County20.4+0.9 pts
30Amite County20.3-2.2 pts
30Covington County20.3+0.2 pts
30Issaquena County20.3+0.1 pts
33Tishomingo County20.2-0.8 pts
33Washington County20.2-1 pts
35Alcorn County20.1+1.9 pts
35Pontotoc County20.1-2.3 pts
35Sunflower County20.1+0.1 pts
38Union County20-2.6 pts
39Itawamba County19.9+1 pts
40Copiah County19.8-0.2 pts
41Forrest County19.7+0.1 pts
41George County19.7+1.1 pts
41Holmes County19.7+0.5 pts
41Monroe County19.7+1 pts
45Stone County19.6+3.1 pts
46Coahoma County19.4+1.2 pts
46Panola County19.4+0.9 pts
48Benton County19.3-0.1 pts
48Clarke County19.3+1.3 pts
48Yazoo County19.3-0.1 pts
51Claiborne County19.2+0.5 pts
51Hancock County19.2+0.2 pts
51Lincoln County19.2+0.7 pts
51Pearl River County19.2+0.4 pts
55Attala County19.1+0.2 pts
56Carroll County19-0.5 pts
57Leflore County18.9-0.7 pts
57Tallahatchie County18.9+0.3 pts
59Clay County18.80 pts
60Greene County18.6-0.5 pts
61Jackson County18.4+1.2 pts
61Lawrence County18.4-1.2 pts
61Oktibbeha County18.40 pts
64Jasper County18.2-0.8 pts
64Lowndes County18.20 pts
66Webster County18.1+0.7 pts
67Grenada County18-0.7 pts
68Lee County17.90 pts
69Franklin County17.8-0.2 pts
69Montgomery County17.8-1.2 pts
71Marshall County17.6-0.3 pts
72Yalobusha County17.2-0.8 pts
73Lafayette County17.1+0.7 pts
74Choctaw County17+0.1 pts
75Hinds County16.9-1.6 pts
76Lauderdale County16.7+0.7 pts
76Tunica County16.7-0.7 pts
78Warren County16.4-1.5 pts
79Lamar County15.9-0.6 pts
80DeSoto County15.4+2.1 pts
81Rankin County13.3+0.2 pts
82Madison County12-1 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 Mississippi 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 Mississippi 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/mississippi-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 Mississippi 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/mississippi-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 Mississippi 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/mississippi-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_mississippi_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 Mississippi 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/mississippi-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 Mississippi 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/mississippi-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/mississippi-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)?

Scott County, with 26.1% in 2018, according to the U.S. Census Bureau.

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

Madison County, with 12% 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 Mississippi: more rankings