Data / Rankings / Uninsured rate, all ages (US) / Counties in South Carolina

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

Saluda County had the highest uninsured rate, all ages (US) of 46 counties in 2021, at 17.6%. McCormick County had the lowest, at 5.4%. The median was 10.5% and the figure for South Carolina was 10.5%. Source: the U.S. Census Bureau.

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Highest17.6Saluda County
Lowest5.4McCormick County
Median10.546 counties
South Carolina10.5History

Map of counties, 2021

Abbeville County: 11.6 %Aiken County: 9.7 %Allendale County: 11.4 %Anderson County: 10.8 %Bamberg County: 14.7 %Barnwell County: 13.1 %Beaufort County: 9.6 %Berkeley County: 10.5 %Calhoun County: 9.4 %Charleston County: 9.8 %Cherokee County: 12.1 %Chester County: 11.3 %Chesterfield County: 12.1 %Clarendon County: 10.4 %Colleton County: 14 %Darlington County: 8.7 %Dillon County: 13.5 %Dorchester County: 11.1 %Edgefield County: 9 %Fairfield County: 7.6 %Florence County: 10.3 %Georgetown County: 10.8 %Greenville County: 10.4 %Greenwood County: 8.8 %Hampton County: 10.3 %Horry County: 14.2 %Jasper County: 13.9 %Kershaw County: 10.1 %Lancaster County: 8.5 %Laurens County: 13.6 %Lee County: 11.3 %Lexington County: 9.6 %McCormick County: 5.4 %Marion County: 13.9 %Marlboro County: 13.2 %Newberry County: 9.4 %Oconee County: 10.3 %Orangeburg County: 10.6 %Pickens County: 9.1 %Richland County: 9.2 %Saluda County: 17.6 %Spartanburg County: 10.2 %Sumter County: 11.4 %Union County: 11.2 %Williamsburg County: 9.8 %York County: 8.5 %
  • Under 9.1
  • 9.1 to 9.8
  • 9.8 to 10
  • 10 to 11
  • 11 to 13
  • 13 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: 17.6 %Saluda County17.6Bamberg County: 14.7 %Bamberg County14.7Horry County: 14.2 %Horry County14.2Colleton County: 14 %Colleton County14Marion County: 13.9 %Marion County13.9Jasper County: 13.9 %Jasper County13.9Laurens County: 13.6 %Laurens County13.6Dillon County: 13.5 %Dillon County13.5Marlboro County: 13.2 %Marlboro County13.2Barnwell County: 13.1 %Barnwell County13.1Chesterfield County: 12.1 %Chesterfield County12.1Cherokee County: 12.1 %Cherokee County12.1Abbeville County: 11.6 %Abbeville County11.6Allendale County: 11.4 %Allendale County11.4Sumter County: 11.4 %Sumter County11.4Chester County: 11.3 %Chester County11.3Lee County: 11.3 %Lee County11.3Union County: 11.2 %Union County11.2Dorchester County: 11.1 %Dorchester County11.1Anderson County: 10.8 %Anderson County10.8Georgetown County: 10.8 %Georgetown County10.8Orangeburg County: 10.6 %Orangeburg County10.6Berkeley County: 10.5 %Berkeley County10.5Clarendon County: 10.4 %Clarendon County10.4Greenville County: 10.4 %Greenville County10.4Oconee County: 10.3 %Oconee County10.3Florence County: 10.3 %Florence County10.3Hampton County: 10.3 %Hampton County10.3Spartanburg County: 10.2 %Spartanburg County10.2Kershaw County: 10.1 %Kershaw County10.1Charleston County: 9.8 %Charleston County9.8Williamsburg County: 9.8 %Williamsburg County9.8Aiken County: 9.7 %Aiken County9.7Lexington County: 9.6 %Lexington County9.6Beaufort County: 9.6 %Beaufort County9.6Newberry County: 9.4 %Newberry County9.4Calhoun County: 9.4 %Calhoun County9.4Richland County: 9.2 %Richland County9.2Pickens County: 9.1 %Pickens County9.1Edgefield County: 9 %Edgefield County9Greenwood County: 8.8 %Greenwood County8.8Darlington County: 8.7 %Darlington County8.7York County: 8.5 %York County8.5Lancaster County: 8.5 %Lancaster County8.5Fairfield County: 7.6 %Fairfield County7.6McCormick County: 5.4 %McCormick County5.4Saluda County: 17.6 %Saluda County17.6Bamberg County: 14.7 %Bamberg County14.7Horry County: 14.2 %Horry County14.2Colleton County: 14 %Colleton County14Marion County: 13.9 %Marion County13.9Jasper County: 13.9 %Jasper County13.9Laurens County: 13.6 %Laurens County13.6Dillon County: 13.5 %Dillon County13.5Marlboro County: 13.2 %Marlboro County13.2Barnwell County: 13.1 %Barnwell County13.1Chesterfield County: 12.1 %Chesterfield County12.1Cherokee County: 12.1 %Cherokee County12.1Abbeville County: 11.6 %Abbeville County11.6Allendale County: 11.4 %Allendale County11.4Sumter County: 11.4 %Sumter County11.4Chester County: 11.3 %Chester County11.3Lee County: 11.3 %Lee County11.3Union County: 11.2 %Union County11.2Dorchester County: 11.1 %Dorchester County11.1Anderson County: 10.8 %Anderson County10.8Georgetown County: 10.8 %Georgetown County10.8Orangeburg County: 10.6 %Orangeburg County10.6Berkeley County: 10.5 %Berkeley County10.5Clarendon County: 10.4 %Clarendon County10.4Greenville County: 10.4 %Greenville County10.4Oconee County: 10.3 %Oconee County10.3Florence County: 10.3 %Florence County10.3Hampton County: 10.3 %Hampton County10.3Spartanburg County: 10.2 %Spartanburg County10.2Kershaw County: 10.1 %Kershaw County10.1Charleston County: 9.8 %Charleston County9.8Williamsburg County: 9.8 %Williamsburg County9.8Aiken County: 9.7 %Aiken County9.7Lexington County: 9.6 %Lexington County9.6Beaufort County: 9.6 %Beaufort County9.6Newberry County: 9.4 %Newberry County9.4Calhoun County: 9.4 %Calhoun County9.4Richland County: 9.2 %Richland County9.2Pickens County: 9.1 %Pickens County9.1Edgefield County: 9 %Edgefield County9Greenwood County: 8.8 %Greenwood County8.8Darlington County: 8.7 %Darlington County8.7York County: 8.5 %York County8.5Lancaster County: 8.5 %Lancaster County8.5Fairfield County: 7.6 %Fairfield County7.6McCormick County: 5.4 %McCormick County5.4
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Saluda County17.6
2Bamberg County14.7
3Horry County14.2
4Colleton County14
5Marion County13.9
6Jasper County13.9
7Laurens County13.6
8Dillon County13.5
9Marlboro County13.2
10Barnwell County13.1
11Chesterfield County12.1
12Cherokee County12.1
13Abbeville County11.6
14Allendale County11.4
15Sumter County11.4
16Chester County11.3
17Lee County11.3
18Union County11.2
19Dorchester County11.1
20Anderson County10.8
21Georgetown County10.8
22Orangeburg County10.6
23Berkeley County10.5
24Clarendon County10.4
25Greenville County10.4
26Oconee County10.3
27Florence County10.3
28Hampton County10.3
29Spartanburg County10.2
30Kershaw County10.1
31Charleston County9.8
32Williamsburg County9.8
33Aiken County9.7
34Lexington County9.6
35Beaufort County9.6
36Newberry County9.4
37Calhoun County9.4
38Richland County9.2
39Pickens County9.1
40Edgefield County9
41Greenwood County8.8
42Darlington County8.7
43York County8.5
44Lancaster County8.5
45Fairfield County7.6
46McCormick County5.4

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/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 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), 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 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), 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/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 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), 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/south-carolina-counties?period=2021.

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), 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/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 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), 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/south-carolina-counties?period=2021. 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/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 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), 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/south-carolina-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/south-carolina-counties?period=2021.
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/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, all ages (US)?

Saluda County, with 17.6% in 2021, according to the U.S. Census Bureau.

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

McCormick County, with 5.4% 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 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