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

Jasper County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 46 counties in 2022, at 19%. McCormick County had the lowest, at 10.8%. The median was 13.9% and the figure for South Carolina was 13.4%. Source: the U.S. Census Bureau.

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Highest19Jasper County
Median13.946 counties
South Carolina13.4History

Map of counties, 2022

Abbeville County: 13.9 %Aiken County: 13.1 %Allendale County: 16.8 %Anderson County: 13.7 %Bamberg County: 16.7 %Barnwell County: 15.9 %Beaufort County: 13 %Berkeley County: 11.7 %Calhoun County: 12.6 %Charleston County: 11.3 %Cherokee County: 14.2 %Chester County: 13.6 %Chesterfield County: 15.4 %Clarendon County: 15.5 %Colleton County: 16.6 %Darlington County: 14 %Dillon County: 17.1 %Dorchester County: 12.6 %Edgefield County: 14.6 %Fairfield County: 11.6 %Florence County: 13 %Georgetown County: 14.1 %Greenville County: 12.8 %Greenwood County: 14.4 %Hampton County: 16.4 %Horry County: 17.6 %Jasper County: 19 %Kershaw County: 12.5 %Lancaster County: 11.5 %Laurens County: 16 %Lee County: 13.9 %Lexington County: 12.8 %McCormick County: 10.8 %Marion County: 15.6 %Marlboro County: 14.9 %Newberry County: 14.8 %Oconee County: 15.7 %Orangeburg County: 13.8 %Pickens County: 13.9 %Richland County: 11.7 %Saluda County: 17.2 %Spartanburg County: 15.3 %Sumter County: 13.4 %Union County: 13.9 %Williamsburg County: 13.4 %York County: 10.9 %
  • Under 13
  • 13 to 14
  • 14 to 15
  • 15 to 16
  • 16 and over
%, 2022. 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.

All counties, 2022

Jasper County: 19 %Jasper County19Horry County: 17.6 %Horry County17.6Saluda County: 17.2 %Saluda County17.2Dillon County: 17.1 %Dillon County17.1Allendale County: 16.8 %Allendale County16.8Bamberg County: 16.7 %Bamberg County16.7Colleton County: 16.6 %Colleton County16.6Hampton County: 16.4 %Hampton County16.4Laurens County: 16 %Laurens County16Barnwell County: 15.9 %Barnwell County15.9Oconee County: 15.7 %Oconee County15.7Marion County: 15.6 %Marion County15.6Clarendon County: 15.5 %Clarendon County15.5Chesterfield County: 15.4 %Chesterfield County15.4Spartanburg County: 15.3 %Spartanburg County15.3Marlboro County: 14.9 %Marlboro County14.9Newberry County: 14.8 %Newberry County14.8Edgefield County: 14.6 %Edgefield County14.6Greenwood County: 14.4 %Greenwood County14.4Cherokee County: 14.2 %Cherokee County14.2Georgetown County: 14.1 %Georgetown County14.1Darlington County: 14 %Darlington County14Abbeville County: 13.9 %Abbeville County13.9Lee County: 13.9 %Lee County13.9Pickens County: 13.9 %Pickens County13.9Union County: 13.9 %Union County13.9Orangeburg County: 13.8 %Orangeburg County13.8Anderson County: 13.7 %Anderson County13.7Chester County: 13.6 %Chester County13.6Sumter County: 13.4 %Sumter County13.4Williamsburg County: 13.4 %Williamsburg County13.4Aiken County: 13.1 %Aiken County13.1Beaufort County: 13 %Beaufort County13Florence County: 13 %Florence County13Greenville County: 12.8 %Greenville County12.8Lexington County: 12.8 %Lexington County12.8Calhoun County: 12.6 %Calhoun County12.6Dorchester County: 12.6 %Dorchester County12.6Kershaw County: 12.5 %Kershaw County12.5Berkeley County: 11.7 %Berkeley County11.7Richland County: 11.7 %Richland County11.7Fairfield County: 11.6 %Fairfield County11.6Lancaster County: 11.5 %Lancaster County11.5Charleston County: 11.3 %Charleston County11.3York County: 10.9 %York County10.9McCormick County: 10.8 %McCormick County10.8Jasper County: 19 %Jasper County19Horry County: 17.6 %Horry County17.6Saluda County: 17.2 %Saluda County17.2Dillon County: 17.1 %Dillon County17.1Allendale County: 16.8 %Allendale County16.8Bamberg County: 16.7 %Bamberg County16.7Colleton County: 16.6 %Colleton County16.6Hampton County: 16.4 %Hampton County16.4Laurens County: 16 %Laurens County16Barnwell County: 15.9 %Barnwell County15.9Oconee County: 15.7 %Oconee County15.7Marion County: 15.6 %Marion County15.6Clarendon County: 15.5 %Clarendon County15.5Chesterfield County: 15.4 %Chesterfield County15.4Spartanburg County: 15.3 %Spartanburg County15.3Marlboro County: 14.9 %Marlboro County14.9Newberry County: 14.8 %Newberry County14.8Edgefield County: 14.6 %Edgefield County14.6Greenwood County: 14.4 %Greenwood County14.4Cherokee County: 14.2 %Cherokee County14.2Georgetown County: 14.1 %Georgetown County14.1Darlington County: 14 %Darlington County14Abbeville County: 13.9 %Abbeville County13.9Lee County: 13.9 %Lee County13.9Pickens County: 13.9 %Pickens County13.9Union County: 13.9 %Union County13.9Orangeburg County: 13.8 %Orangeburg County13.8Anderson County: 13.7 %Anderson County13.7Chester County: 13.6 %Chester County13.6Sumter County: 13.4 %Sumter County13.4Williamsburg County: 13.4 %Williamsburg County13.4Aiken County: 13.1 %Aiken County13.1Beaufort County: 13 %Beaufort County13Florence County: 13 %Florence County13Greenville County: 12.8 %Greenville County12.8Lexington County: 12.8 %Lexington County12.8Calhoun County: 12.6 %Calhoun County12.6Dorchester County: 12.6 %Dorchester County12.6Kershaw County: 12.5 %Kershaw County12.5Berkeley County: 11.7 %Berkeley County11.7Richland County: 11.7 %Richland County11.7Fairfield County: 11.6 %Fairfield County11.6Lancaster County: 11.5 %Lancaster County11.5Charleston County: 11.3 %Charleston County11.3York County: 10.9 %York County10.9McCormick County: 10.8 %McCormick County10.8
%. 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

RankCounties2022 (%)Change on 2021
1Jasper County19-2.9 pts
2Horry County17.6-2.5 pts
3Saluda County17.2-5.3 pts
4Dillon County17.1+0.5 pts
5Allendale County16.8+1.1 pts
6Bamberg County16.7-0.4 pts
7Colleton County16.6-1.3 pts
8Hampton County16.4+0.4 pts
9Laurens County16-1.9 pts
10Barnwell County15.9-0.9 pts
11Oconee County15.7-1.3 pts
12Marion County15.6-0.7 pts
13Clarendon County15.5-2.6 pts
14Chesterfield County15.4-2.1 pts
15Spartanburg County15.3+0.2 pts
16Marlboro County14.9-2.3 pts
17Newberry County14.8-2.4 pts
18Edgefield County14.6-1.5 pts
19Greenwood County14.4-2.7 pts
20Cherokee County14.2-2.2 pts
21Georgetown County14.1-2 pts
22Darlington County14-1.7 pts
23Abbeville County13.9-1.9 pts
23Lee County13.9-0.9 pts
23Pickens County13.9-1.4 pts
23Union County13.9-1.4 pts
27Orangeburg County13.8-2.6 pts
28Anderson County13.7-2.5 pts
29Chester County13.6-1.1 pts
30Sumter County13.4-0.7 pts
30Williamsburg County13.4-2.3 pts
32Aiken County13.1-1.7 pts
33Beaufort County13-3.4 pts
33Florence County13-1.2 pts
35Greenville County12.8-2 pts
35Lexington County12.8-1 pts
37Calhoun County12.6-1.8 pts
37Dorchester County12.6-1 pts
39Kershaw County12.5-2.1 pts
40Berkeley County11.7-1.1 pts
40Richland County11.7-0.3 pts
42Fairfield County11.6-0.7 pts
43Lancaster County11.5-2.8 pts
44Charleston County11.3-1.2 pts
45York County10.9-1.2 pts
46McCormick County10.8-2.8 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-2022-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 South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2022) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-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 South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2022. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2022. 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 South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2022. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2022.

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 South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2022 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2022,
  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 South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2022}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2022. 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-2022-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 South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2022
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-2022-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2022.
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-2022-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)?

Jasper County, with 19% in 2022, according to the U.S. Census Bureau.

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

McCormick County, with 10.8% in 2022.

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 South Carolina: more rankings