Data / Rankings / Uninsured rate, ages 35 to 64 (US, ACS) / Counties in South Carolina

Counties in South Carolina by uninsured rate, ages 35 to 64 (US, ACS)

Saluda County had the highest uninsured rate, ages 35 to 64 (US, ACS) of 46 counties in 2021, at 26.1%. McCormick County had the lowest, at 9.4%. The median was 14.3% and the figure for South Carolina was 13.9%. Source: the U.S. Census Bureau.

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Highest26.1Saluda County
Lowest9.4McCormick County
Median14.346 counties
South Carolina13.9History

Map of counties, 2021

Abbeville County: 17.4 %Aiken County: 13.2 %Allendale County: 13.1 %Anderson County: 14 %Bamberg County: 14.7 %Barnwell County: 18.8 %Beaufort County: 13.6 %Berkeley County: 14.3 %Calhoun County: 15.9 %Charleston County: 11.5 %Cherokee County: 15.4 %Chester County: 15.6 %Chesterfield County: 16.9 %Clarendon County: 16.3 %Colleton County: 19.5 %Darlington County: 12.1 %Dillon County: 17.9 %Dorchester County: 13 %Edgefield County: 12.4 %Fairfield County: 12.1 %Florence County: 14.5 %Georgetown County: 15.8 %Greenville County: 13.3 %Greenwood County: 13.9 %Hampton County: 12.3 %Horry County: 19.6 %Jasper County: 19.1 %Kershaw County: 12.8 %Lancaster County: 11.4 %Laurens County: 18.5 %Lee County: 12.5 %Lexington County: 12 %McCormick County: 9.4 %Marion County: 20.5 %Marlboro County: 17.9 %Newberry County: 12.5 %Oconee County: 15.8 %Orangeburg County: 16.4 %Pickens County: 13 %Richland County: 11.5 %Saluda County: 26.1 %Spartanburg County: 13.7 %Sumter County: 14.7 %Union County: 14.3 %Williamsburg County: 16.7 %York County: 11.1 %
  • Under 12
  • 12 to 13
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  • 16 to 18
  • 18 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Saluda County: 26.1 %Saluda County26.1Marion County: 20.5 %Marion County20.5Horry County: 19.6 %Horry County19.6Colleton County: 19.5 %Colleton County19.5Jasper County: 19.1 %Jasper County19.1Barnwell County: 18.8 %Barnwell County18.8Laurens County: 18.5 %Laurens County18.5Marlboro County: 17.9 %Marlboro County17.9Dillon County: 17.9 %Dillon County17.9Abbeville County: 17.4 %Abbeville County17.4Chesterfield County: 16.9 %Chesterfield County16.9Williamsburg County: 16.7 %Williamsburg County16.7Orangeburg County: 16.4 %Orangeburg County16.4Clarendon County: 16.3 %Clarendon County16.3Calhoun County: 15.9 %Calhoun County15.9Oconee County: 15.8 %Oconee County15.8Georgetown County: 15.8 %Georgetown County15.8Chester County: 15.6 %Chester County15.6Cherokee County: 15.4 %Cherokee County15.4Bamberg County: 14.7 %Bamberg County14.7Sumter County: 14.7 %Sumter County14.7Florence County: 14.5 %Florence County14.5Union County: 14.3 %Union County14.3Berkeley County: 14.3 %Berkeley County14.3Anderson County: 14 %Anderson County14Greenwood County: 13.9 %Greenwood County13.9Spartanburg County: 13.7 %Spartanburg County13.7Beaufort County: 13.6 %Beaufort County13.6Greenville County: 13.3 %Greenville County13.3Aiken County: 13.2 %Aiken County13.2Allendale County: 13.1 %Allendale County13.1Pickens County: 13 %Pickens County13Dorchester County: 13 %Dorchester County13Kershaw County: 12.8 %Kershaw County12.8Newberry County: 12.5 %Newberry County12.5Lee County: 12.5 %Lee County12.5Edgefield County: 12.4 %Edgefield County12.4Hampton County: 12.3 %Hampton County12.3Darlington County: 12.1 %Darlington County12.1Fairfield County: 12.1 %Fairfield County12.1Lexington County: 12 %Lexington County12Charleston County: 11.5 %Charleston County11.5Richland County: 11.5 %Richland County11.5Lancaster County: 11.4 %Lancaster County11.4York County: 11.1 %York County11.1McCormick County: 9.4 %McCormick County9.4Saluda County: 26.1 %Saluda County26.1Marion County: 20.5 %Marion County20.5Horry County: 19.6 %Horry County19.6Colleton County: 19.5 %Colleton County19.5Jasper County: 19.1 %Jasper County19.1Barnwell County: 18.8 %Barnwell County18.8Laurens County: 18.5 %Laurens County18.5Marlboro County: 17.9 %Marlboro County17.9Dillon County: 17.9 %Dillon County17.9Abbeville County: 17.4 %Abbeville County17.4Chesterfield County: 16.9 %Chesterfield County16.9Williamsburg County: 16.7 %Williamsburg County16.7Orangeburg County: 16.4 %Orangeburg County16.4Clarendon County: 16.3 %Clarendon County16.3Calhoun County: 15.9 %Calhoun County15.9Oconee County: 15.8 %Oconee County15.8Georgetown County: 15.8 %Georgetown County15.8Chester County: 15.6 %Chester County15.6Cherokee County: 15.4 %Cherokee County15.4Bamberg County: 14.7 %Bamberg County14.7Sumter County: 14.7 %Sumter County14.7Florence County: 14.5 %Florence County14.5Union County: 14.3 %Union County14.3Berkeley County: 14.3 %Berkeley County14.3Anderson County: 14 %Anderson County14Greenwood County: 13.9 %Greenwood County13.9Spartanburg County: 13.7 %Spartanburg County13.7Beaufort County: 13.6 %Beaufort County13.6Greenville County: 13.3 %Greenville County13.3Aiken County: 13.2 %Aiken County13.2Allendale County: 13.1 %Allendale County13.1Pickens County: 13 %Pickens County13Dorchester County: 13 %Dorchester County13Kershaw County: 12.8 %Kershaw County12.8Newberry County: 12.5 %Newberry County12.5Lee County: 12.5 %Lee County12.5Edgefield County: 12.4 %Edgefield County12.4Hampton County: 12.3 %Hampton County12.3Darlington County: 12.1 %Darlington County12.1Fairfield County: 12.1 %Fairfield County12.1Lexington County: 12 %Lexington County12Charleston County: 11.5 %Charleston County11.5Richland County: 11.5 %Richland County11.5Lancaster County: 11.4 %Lancaster County11.4York County: 11.1 %York County11.1McCormick County: 9.4 %McCormick County9.4
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Saluda County26.1
2Marion County20.5
3Horry County19.6
4Colleton County19.5
5Jasper County19.1
6Barnwell County18.8
7Laurens County18.5
8Marlboro County17.9
9Dillon County17.9
10Abbeville County17.4
11Chesterfield County16.9
12Williamsburg County16.7
13Orangeburg County16.4
14Clarendon County16.3
15Calhoun County15.9
16Oconee County15.8
17Georgetown County15.8
18Chester County15.6
19Cherokee County15.4
20Bamberg County14.7
20Sumter County14.7
22Florence County14.5
23Union County14.3
24Berkeley County14.3
25Anderson County14
26Greenwood County13.9
27Spartanburg County13.7
28Beaufort County13.6
29Greenville County13.3
30Aiken County13.2
31Allendale County13.1
32Pickens County13
33Dorchester County13
34Kershaw County12.8
35Newberry County12.5
36Lee County12.5
37Edgefield County12.4
38Hampton County12.3
39Darlington County12.1
40Fairfield County12.1
41Lexington County12
42Charleston County11.5
43Richland County11.5
44Lancaster County11.4
45York County11.1
46McCormick County9.4

Other periods

About this ranking

People aged 35 to 64 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 35 to 64. 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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs (Counties in South Carolina by uninsured rate, ages 35 to 64 (US, ACS), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in South Carolina by uninsured rate, ages 35 to 64 (US, ACS), 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-carolina-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Counties in South Carolina by uninsured rate, ages 35 to 64 (US, ACS), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-carolina-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in South Carolina by uninsured rate, ages 35 to 64 (US, ACS), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-carolina-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in South Carolina by uninsured rate, ages 35 to 64 (US, ACS), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-carolina-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in South Carolina by uninsured rate, ages 35 to 64 (US, ACS), 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-carolina-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-carolina-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, ages 35 to 64 (US, ACS)?

Saluda County, with 26.1% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 35 to 64 (US, ACS)?

McCormick County, with 9.4% in 2021.

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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 35 to 64 (US, ACS): other rankings

Counties in South Carolina: more rankings