Counties in South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2024

Saluda County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 46 counties in 2024, at 18.7%. McCormick County had the lowest, at 9.6%. The median was 13.6% and the figure for South Carolina was 13.1%. Source: the U.S. Census Bureau.

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Highest18.7Saluda County
Median13.646 counties
South Carolina13.1History

Map of counties, 2024

Abbeville County: 13.1 %Aiken County: 12.3 %Allendale County: 12.7 %Anderson County: 13.4 %Bamberg County: 16.3 %Barnwell County: 14.7 %Beaufort County: 12.6 %Berkeley County: 11.6 %Calhoun County: 11.6 %Charleston County: 10.9 %Cherokee County: 14.5 %Chester County: 15 %Chesterfield County: 15.3 %Clarendon County: 14.7 %Colleton County: 16.5 %Darlington County: 13.2 %Dillon County: 13.7 %Dorchester County: 11.8 %Edgefield County: 15.9 %Fairfield County: 12.1 %Florence County: 12.1 %Georgetown County: 12.3 %Greenville County: 13.6 %Greenwood County: 12.6 %Hampton County: 16.9 %Horry County: 16.3 %Jasper County: 18.4 %Kershaw County: 11.8 %Lancaster County: 12.2 %Laurens County: 15.3 %Lee County: 14.7 %Lexington County: 12.9 %McCormick County: 9.6 %Marion County: 13.5 %Marlboro County: 13.4 %Newberry County: 14.7 %Oconee County: 15.8 %Orangeburg County: 13.9 %Pickens County: 13.9 %Richland County: 12 %Saluda County: 18.7 %Spartanburg County: 14.9 %Sumter County: 11.8 %Union County: 14.5 %Williamsburg County: 14.5 %York County: 10.6 %
  • Under 12
  • 12 to 13
  • 13 to 14
  • 14 to 15
  • 15 to 16
  • 16 and over
%, 2024. 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, 2024

Saluda County: 18.7 %Saluda County18.7Jasper County: 18.4 %Jasper County18.4Hampton County: 16.9 %Hampton County16.9Colleton County: 16.5 %Colleton County16.5Bamberg County: 16.3 %Bamberg County16.3Horry County: 16.3 %Horry County16.3Edgefield County: 15.9 %Edgefield County15.9Oconee County: 15.8 %Oconee County15.8Chesterfield County: 15.3 %Chesterfield County15.3Laurens County: 15.3 %Laurens County15.3Chester County: 15 %Chester County15Spartanburg County: 14.9 %Spartanburg County14.9Barnwell County: 14.7 %Barnwell County14.7Clarendon County: 14.7 %Clarendon County14.7Lee County: 14.7 %Lee County14.7Newberry County: 14.7 %Newberry County14.7Cherokee County: 14.5 %Cherokee County14.5Union County: 14.5 %Union County14.5Williamsburg County: 14.5 %Williamsburg County14.5Orangeburg County: 13.9 %Orangeburg County13.9Pickens County: 13.9 %Pickens County13.9Dillon County: 13.7 %Dillon County13.7Greenville County: 13.6 %Greenville County13.6Marion County: 13.5 %Marion County13.5Anderson County: 13.4 %Anderson County13.4Marlboro County: 13.4 %Marlboro County13.4Darlington County: 13.2 %Darlington County13.2Abbeville County: 13.1 %Abbeville County13.1Lexington County: 12.9 %Lexington County12.9Allendale County: 12.7 %Allendale County12.7Beaufort County: 12.6 %Beaufort County12.6Greenwood County: 12.6 %Greenwood County12.6Aiken County: 12.3 %Aiken County12.3Georgetown County: 12.3 %Georgetown County12.3Lancaster County: 12.2 %Lancaster County12.2Fairfield County: 12.1 %Fairfield County12.1Florence County: 12.1 %Florence County12.1Richland County: 12 %Richland County12Dorchester County: 11.8 %Dorchester County11.8Kershaw County: 11.8 %Kershaw County11.8Sumter County: 11.8 %Sumter County11.8Berkeley County: 11.6 %Berkeley County11.6Calhoun County: 11.6 %Calhoun County11.6Charleston County: 10.9 %Charleston County10.9York County: 10.6 %York County10.6McCormick County: 9.6 %McCormick County9.6Saluda County: 18.7 %Saluda County18.7Jasper County: 18.4 %Jasper County18.4Hampton County: 16.9 %Hampton County16.9Colleton County: 16.5 %Colleton County16.5Bamberg County: 16.3 %Bamberg County16.3Horry County: 16.3 %Horry County16.3Edgefield County: 15.9 %Edgefield County15.9Oconee County: 15.8 %Oconee County15.8Chesterfield County: 15.3 %Chesterfield County15.3Laurens County: 15.3 %Laurens County15.3Chester County: 15 %Chester County15Spartanburg County: 14.9 %Spartanburg County14.9Barnwell County: 14.7 %Barnwell County14.7Clarendon County: 14.7 %Clarendon County14.7Lee County: 14.7 %Lee County14.7Newberry County: 14.7 %Newberry County14.7Cherokee County: 14.5 %Cherokee County14.5Union County: 14.5 %Union County14.5Williamsburg County: 14.5 %Williamsburg County14.5Orangeburg County: 13.9 %Orangeburg County13.9Pickens County: 13.9 %Pickens County13.9Dillon County: 13.7 %Dillon County13.7Greenville County: 13.6 %Greenville County13.6Marion County: 13.5 %Marion County13.5Anderson County: 13.4 %Anderson County13.4Marlboro County: 13.4 %Marlboro County13.4Darlington County: 13.2 %Darlington County13.2Abbeville County: 13.1 %Abbeville County13.1Lexington County: 12.9 %Lexington County12.9Allendale County: 12.7 %Allendale County12.7Beaufort County: 12.6 %Beaufort County12.6Greenwood County: 12.6 %Greenwood County12.6Aiken County: 12.3 %Aiken County12.3Georgetown County: 12.3 %Georgetown County12.3Lancaster County: 12.2 %Lancaster County12.2Fairfield County: 12.1 %Fairfield County12.1Florence County: 12.1 %Florence County12.1Richland County: 12 %Richland County12Dorchester County: 11.8 %Dorchester County11.8Kershaw County: 11.8 %Kershaw County11.8Sumter County: 11.8 %Sumter County11.8Berkeley County: 11.6 %Berkeley County11.6Calhoun County: 11.6 %Calhoun County11.6Charleston County: 10.9 %Charleston County10.9York County: 10.6 %York County10.6McCormick County: 9.6 %McCormick County9.6
%. 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

RankCounties2024 (%)Change on 2023
1Saluda County18.70 pts
2Jasper County18.4+0.3 pts
3Hampton County16.9-0.6 pts
4Colleton County16.5-0.6 pts
5Bamberg County16.3+0.2 pts
5Horry County16.3+1.5 pts
7Edgefield County15.9+0.5 pts
8Oconee County15.8+1.1 pts
9Chesterfield County15.3+0.3 pts
9Laurens County15.3-0.2 pts
11Chester County15+0.9 pts
12Spartanburg County14.9+0.5 pts
13Barnwell County14.7-0.9 pts
13Clarendon County14.7+0.5 pts
13Lee County14.7-1.4 pts
13Newberry County14.7-0.3 pts
17Cherokee County14.5+0.8 pts
17Union County14.5+0.9 pts
17Williamsburg County14.5-0.7 pts
20Orangeburg County13.9+0.2 pts
20Pickens County13.9-0.4 pts
22Dillon County13.7-1.7 pts
23Greenville County13.6+0.1 pts
24Marion County13.5-0.3 pts
25Anderson County13.4-0.6 pts
25Marlboro County13.4+0.3 pts
27Darlington County13.2+0.2 pts
28Abbeville County13.1-0.9 pts
29Lexington County12.9+1.6 pts
30Allendale County12.7-0.8 pts
31Beaufort County12.6-0.5 pts
31Greenwood County12.6-1.4 pts
33Aiken County12.3-0.7 pts
33Georgetown County12.3-0.8 pts
35Lancaster County12.2-0.1 pts
36Fairfield County12.1+0.3 pts
36Florence County12.1-0.9 pts
38Richland County12+0.4 pts
39Dorchester County11.8-0.7 pts
39Kershaw County11.8-1.5 pts
39Sumter County11.8+0.2 pts
42Berkeley County11.6+0.3 pts
42Calhoun County11.6-0.7 pts
44Charleston County10.9-0.5 pts
45York County10.6-0.1 pts
46McCormick County9.6-1 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-2024-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), 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-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), 2024. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties. 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), 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties.

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), 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2024,
  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), 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties. 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-2024-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), 2024
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-2024-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties.
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-2024-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)?

Saluda County, with 18.7% in 2024, 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 9.6% in 2024.

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