Counties in South Carolina by uninsured rate, all ages (US)

Saluda County had the highest uninsured rate, all ages (US) of 46 counties in 2023, at 16.1%. McCormick County had the lowest, at 4.1%. The median was 10.3% and the figure for South Carolina was 10%. Source: the U.S. Census Bureau.

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Highest16.1Saluda County
Median10.346 counties
South Carolina10History

Map of counties, 2023

Abbeville County: 10.7 %Aiken County: 8.8 %Allendale County: 12.2 %Anderson County: 10.4 %Bamberg County: 14.3 %Barnwell County: 11.8 %Beaufort County: 8.4 %Berkeley County: 9.9 %Calhoun County: 7.9 %Charleston County: 8.9 %Cherokee County: 10.2 %Chester County: 11.8 %Chesterfield County: 12.1 %Clarendon County: 9.8 %Colleton County: 15.5 %Darlington County: 9 %Dillon County: 14.6 %Dorchester County: 11.3 %Edgefield County: 10.8 %Fairfield County: 8 %Florence County: 10 %Georgetown County: 10.1 %Greenville County: 10.1 %Greenwood County: 7.9 %Hampton County: 12.7 %Horry County: 12.4 %Jasper County: 12.9 %Kershaw County: 8.9 %Lancaster County: 8.3 %Laurens County: 12.7 %Lee County: 10.3 %Lexington County: 9 %McCormick County: 4.1 %Marion County: 13.8 %Marlboro County: 14.1 %Newberry County: 8.5 %Oconee County: 10.4 %Orangeburg County: 9.9 %Pickens County: 8.9 %Richland County: 8.8 %Saluda County: 16.1 %Spartanburg County: 10.9 %Sumter County: 10.5 %Union County: 11.7 %Williamsburg County: 10.8 %York County: 8.3 %
  • Under 8.6
  • 8.6 to 9.8
  • 9.8 to 10
  • 10 to 11
  • 11 to 13
  • 13 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Saluda County: 16.1 %Saluda County16.1Colleton County: 15.5 %Colleton County15.5Dillon County: 14.6 %Dillon County14.6Bamberg County: 14.3 %Bamberg County14.3Marlboro County: 14.1 %Marlboro County14.1Marion County: 13.8 %Marion County13.8Jasper County: 12.9 %Jasper County12.9Laurens County: 12.7 %Laurens County12.7Hampton County: 12.7 %Hampton County12.7Horry County: 12.4 %Horry County12.4Allendale County: 12.2 %Allendale County12.2Chesterfield County: 12.1 %Chesterfield County12.1Barnwell County: 11.8 %Barnwell County11.8Chester County: 11.8 %Chester County11.8Union County: 11.7 %Union County11.7Dorchester County: 11.3 %Dorchester County11.3Spartanburg County: 10.9 %Spartanburg County10.9Williamsburg County: 10.8 %Williamsburg County10.8Edgefield County: 10.8 %Edgefield County10.8Abbeville County: 10.7 %Abbeville County10.7Sumter County: 10.5 %Sumter County10.5Oconee County: 10.4 %Oconee County10.4Anderson County: 10.4 %Anderson County10.4Lee County: 10.3 %Lee County10.3Cherokee County: 10.2 %Cherokee County10.2Georgetown County: 10.1 %Georgetown County10.1Greenville County: 10.1 %Greenville County10.1Florence County: 10 %Florence County10Berkeley County: 9.9 %Berkeley County9.9Orangeburg County: 9.9 %Orangeburg County9.9Clarendon County: 9.8 %Clarendon County9.8Darlington County: 9 %Darlington County9Lexington County: 9 %Lexington County9Charleston County: 8.9 %Charleston County8.9Pickens County: 8.9 %Pickens County8.9Kershaw County: 8.9 %Kershaw County8.9Aiken County: 8.8 %Aiken County8.8Richland County: 8.8 %Richland County8.8Newberry County: 8.5 %Newberry County8.5Beaufort County: 8.4 %Beaufort County8.4Lancaster County: 8.3 %Lancaster County8.3York County: 8.3 %York County8.3Fairfield County: 8 %Fairfield County8Greenwood County: 7.9 %Greenwood County7.9Calhoun County: 7.9 %Calhoun County7.9McCormick County: 4.1 %McCormick County4.1Saluda County: 16.1 %Saluda County16.1Colleton County: 15.5 %Colleton County15.5Dillon County: 14.6 %Dillon County14.6Bamberg County: 14.3 %Bamberg County14.3Marlboro County: 14.1 %Marlboro County14.1Marion County: 13.8 %Marion County13.8Jasper County: 12.9 %Jasper County12.9Laurens County: 12.7 %Laurens County12.7Hampton County: 12.7 %Hampton County12.7Horry County: 12.4 %Horry County12.4Allendale County: 12.2 %Allendale County12.2Chesterfield County: 12.1 %Chesterfield County12.1Barnwell County: 11.8 %Barnwell County11.8Chester County: 11.8 %Chester County11.8Union County: 11.7 %Union County11.7Dorchester County: 11.3 %Dorchester County11.3Spartanburg County: 10.9 %Spartanburg County10.9Williamsburg County: 10.8 %Williamsburg County10.8Edgefield County: 10.8 %Edgefield County10.8Abbeville County: 10.7 %Abbeville County10.7Sumter County: 10.5 %Sumter County10.5Oconee County: 10.4 %Oconee County10.4Anderson County: 10.4 %Anderson County10.4Lee County: 10.3 %Lee County10.3Cherokee County: 10.2 %Cherokee County10.2Georgetown County: 10.1 %Georgetown County10.1Greenville County: 10.1 %Greenville County10.1Florence County: 10 %Florence County10Berkeley County: 9.9 %Berkeley County9.9Orangeburg County: 9.9 %Orangeburg County9.9Clarendon County: 9.8 %Clarendon County9.8Darlington County: 9 %Darlington County9Lexington County: 9 %Lexington County9Charleston County: 8.9 %Charleston County8.9Pickens County: 8.9 %Pickens County8.9Kershaw County: 8.9 %Kershaw County8.9Aiken County: 8.8 %Aiken County8.8Richland County: 8.8 %Richland County8.8Newberry County: 8.5 %Newberry County8.5Beaufort County: 8.4 %Beaufort County8.4Lancaster County: 8.3 %Lancaster County8.3York County: 8.3 %York County8.3Fairfield County: 8 %Fairfield County8Greenwood County: 7.9 %Greenwood County7.9Calhoun County: 7.9 %Calhoun County7.9McCormick County: 4.1 %McCormick County4.1
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Saluda County16.1-0 pts
2Colleton County15.5-0.3 pts
3Dillon County14.6-0.4 pts
4Bamberg County14.3-0.5 pts
5Marlboro County14.1+0.5 pts
6Marion County13.8+0.2 pts
7Jasper County12.9-0.7 pts
8Laurens County12.7-1 pts
9Hampton County12.7+0.6 pts
10Horry County12.4-1.2 pts
11Allendale County12.2+0.4 pts
12Chesterfield County12.1-0.3 pts
13Barnwell County11.8+0.3 pts
14Chester County11.8-0.1 pts
15Union County11.7+0.2 pts
16Dorchester County11.3+0.8 pts
17Spartanburg County10.9+0.2 pts
18Williamsburg County10.8-0.5 pts
19Edgefield County10.8+0.2 pts
20Abbeville County10.7+0.2 pts
21Sumter County10.5-0.3 pts
22Oconee County10.4-0.2 pts
23Anderson County10.4-0.1 pts
24Lee County10.3-0.1 pts
25Cherokee County10.2-0.8 pts
26Georgetown County10.1+0.1 pts
27Greenville County10.1-0.2 pts
28Florence County10-0.5 pts
29Berkeley County9.9-0.3 pts
30Orangeburg County9.9-0.3 pts
31Clarendon County9.8-0.3 pts
32Darlington County9+0.2 pts
33Lexington County9-0.3 pts
34Charleston County8.9-0 pts
34Pickens County8.9+0.1 pts
36Kershaw County8.9+0.3 pts
37Aiken County8.8-0.2 pts
38Richland County8.8-0.2 pts
39Newberry County8.5-0.8 pts
40Beaufort County8.4-0.3 pts
41Lancaster County8.3+0.5 pts
42York County8.3+0.1 pts
43Fairfield County8+0.5 pts
44Greenwood County7.9-0.4 pts
45Calhoun County7.9-1.4 pts
46McCormick County4.1-1.4 pts

Other periods

About this ranking

People without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Coverage is what people reported at the interview, so the five-year figure averages five years of answers. People whose only coverage is the Indian Health Service count as uninsured. Active-duty military and people living in institutions are outside the universe. For single-year model-based county figures under 65, see uninsured_rate_under_65, uninsured_rate_18_64 and uninsured_rate_under_19 (SAHIE), a different source.

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. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. 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). American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs (Counties in South Carolina by uninsured rate, all ages (US), 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in South Carolina by uninsured rate, all ages (US), 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate/south-carolina-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Counties in South Carolina by uninsured rate, all ages (US), 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate/south-carolina-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in South Carolina by uninsured rate, all ages (US), 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate/south-carolina-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2023,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in South Carolina by uninsured rate, all ages (US), 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/south-carolina-counties?period=2023. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in South Carolina by uninsured rate, all ages (US), 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate/south-carolina-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/south-carolina-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Retrieved 2026-10-12.
ER  - 
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Rank Counties in South Carolina by uninsured rate, all ages (US) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, all ages (US)?

Saluda County, with 16.1% in 2023, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, all ages (US)?

McCormick County, with 4.1% in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, all ages (US): other rankings

Counties in South Carolina: more rankings