Data / Rankings / Uninsured rate, ages 19 to 34 (US, ACS) / Counties in South Carolina

Counties in South Carolina by uninsured rate, ages 19 to 34 (US, ACS)

Allendale County had the highest uninsured rate, ages 19 to 34 (US, ACS) of 46 counties in 2021, at 35.8%. Pickens County had the lowest, at 12.9%. The median was 19.8% and the figure for South Carolina was 18.9%. Source: the U.S. Census Bureau.

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Highest35.8Allendale County
Lowest12.9Pickens County
Median19.846 counties
South Carolina18.9History

Map of counties, 2021

Abbeville County: 19.3 %Aiken County: 18.9 %Allendale County: 35.8 %Anderson County: 19.1 %Bamberg County: 33.2 %Barnwell County: 26.6 %Beaufort County: 19.4 %Berkeley County: 15.7 %Calhoun County: 12.9 %Charleston County: 16.4 %Cherokee County: 24.9 %Chester County: 21.1 %Chesterfield County: 22.6 %Clarendon County: 21.1 %Colleton County: 21.6 %Darlington County: 17.9 %Dillon County: 27.3 %Dorchester County: 19.9 %Edgefield County: 18.6 %Fairfield County: 13.4 %Florence County: 19.6 %Georgetown County: 23.8 %Greenville County: 18 %Greenwood County: 14 %Hampton County: 22.3 %Horry County: 29.1 %Jasper County: 25.9 %Kershaw County: 23.6 %Lancaster County: 18.3 %Laurens County: 24.7 %Lee County: 26.6 %Lexington County: 18.6 %McCormick County: 13.9 %Marion County: 24.4 %Marlboro County: 27.6 %Newberry County: 19.2 %Oconee County: 20.3 %Orangeburg County: 19.7 %Pickens County: 12.9 %Richland County: 15.1 %Saluda County: 26.1 %Spartanburg County: 16.5 %Sumter County: 24.4 %Union County: 24.2 %Williamsburg County: 16.8 %York County: 17.2 %
  • Under 16
  • 16 to 19
  • 19 to 20
  • 20 to 24
  • 24 to 26
  • 26 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Allendale County: 35.8 %Allendale County35.8Bamberg County: 33.2 %Bamberg County33.2Horry County: 29.1 %Horry County29.1Marlboro County: 27.6 %Marlboro County27.6Dillon County: 27.3 %Dillon County27.3Barnwell County: 26.6 %Barnwell County26.6Lee County: 26.6 %Lee County26.6Saluda County: 26.1 %Saluda County26.1Jasper County: 25.9 %Jasper County25.9Cherokee County: 24.9 %Cherokee County24.9Laurens County: 24.7 %Laurens County24.7Sumter County: 24.4 %Sumter County24.4Marion County: 24.4 %Marion County24.4Union County: 24.2 %Union County24.2Georgetown County: 23.8 %Georgetown County23.8Kershaw County: 23.6 %Kershaw County23.6Chesterfield County: 22.6 %Chesterfield County22.6Hampton County: 22.3 %Hampton County22.3Colleton County: 21.6 %Colleton County21.6Chester County: 21.1 %Chester County21.1Clarendon County: 21.1 %Clarendon County21.1Oconee County: 20.3 %Oconee County20.3Dorchester County: 19.9 %Dorchester County19.9Orangeburg County: 19.7 %Orangeburg County19.7Florence County: 19.6 %Florence County19.6Beaufort County: 19.4 %Beaufort County19.4Abbeville County: 19.3 %Abbeville County19.3Newberry County: 19.2 %Newberry County19.2Anderson County: 19.1 %Anderson County19.1Aiken County: 18.9 %Aiken County18.9Lexington County: 18.6 %Lexington County18.6Edgefield County: 18.6 %Edgefield County18.6Lancaster County: 18.3 %Lancaster County18.3Greenville County: 18 %Greenville County18Darlington County: 17.9 %Darlington County17.9York County: 17.2 %York County17.2Williamsburg County: 16.8 %Williamsburg County16.8Spartanburg County: 16.5 %Spartanburg County16.5Charleston County: 16.4 %Charleston County16.4Berkeley County: 15.7 %Berkeley County15.7Richland County: 15.1 %Richland County15.1Greenwood County: 14 %Greenwood County14McCormick County: 13.9 %McCormick County13.9Fairfield County: 13.4 %Fairfield County13.4Calhoun County: 12.9 %Calhoun County12.9Pickens County: 12.9 %Pickens County12.9Allendale County: 35.8 %Allendale County35.8Bamberg County: 33.2 %Bamberg County33.2Horry County: 29.1 %Horry County29.1Marlboro County: 27.6 %Marlboro County27.6Dillon County: 27.3 %Dillon County27.3Barnwell County: 26.6 %Barnwell County26.6Lee County: 26.6 %Lee County26.6Saluda County: 26.1 %Saluda County26.1Jasper County: 25.9 %Jasper County25.9Cherokee County: 24.9 %Cherokee County24.9Laurens County: 24.7 %Laurens County24.7Sumter County: 24.4 %Sumter County24.4Marion County: 24.4 %Marion County24.4Union County: 24.2 %Union County24.2Georgetown County: 23.8 %Georgetown County23.8Kershaw County: 23.6 %Kershaw County23.6Chesterfield County: 22.6 %Chesterfield County22.6Hampton County: 22.3 %Hampton County22.3Colleton County: 21.6 %Colleton County21.6Chester County: 21.1 %Chester County21.1Clarendon County: 21.1 %Clarendon County21.1Oconee County: 20.3 %Oconee County20.3Dorchester County: 19.9 %Dorchester County19.9Orangeburg County: 19.7 %Orangeburg County19.7Florence County: 19.6 %Florence County19.6Beaufort County: 19.4 %Beaufort County19.4Abbeville County: 19.3 %Abbeville County19.3Newberry County: 19.2 %Newberry County19.2Anderson County: 19.1 %Anderson County19.1Aiken County: 18.9 %Aiken County18.9Lexington County: 18.6 %Lexington County18.6Edgefield County: 18.6 %Edgefield County18.6Lancaster County: 18.3 %Lancaster County18.3Greenville County: 18 %Greenville County18Darlington County: 17.9 %Darlington County17.9York County: 17.2 %York County17.2Williamsburg County: 16.8 %Williamsburg County16.8Spartanburg County: 16.5 %Spartanburg County16.5Charleston County: 16.4 %Charleston County16.4Berkeley County: 15.7 %Berkeley County15.7Richland County: 15.1 %Richland County15.1Greenwood County: 14 %Greenwood County14McCormick County: 13.9 %McCormick County13.9Fairfield County: 13.4 %Fairfield County13.4Calhoun County: 12.9 %Calhoun County12.9Pickens County: 12.9 %Pickens County12.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Allendale County35.8
2Bamberg County33.2
3Horry County29.1
4Marlboro County27.6
5Dillon County27.3
6Barnwell County26.6
7Lee County26.6
8Saluda County26.1
9Jasper County25.9
10Cherokee County24.9
11Laurens County24.7
12Sumter County24.4
13Marion County24.4
14Union County24.2
15Georgetown County23.8
16Kershaw County23.6
17Chesterfield County22.6
18Hampton County22.3
19Colleton County21.6
20Chester County21.1
20Clarendon County21.1
22Oconee County20.3
23Dorchester County19.9
24Orangeburg County19.7
25Florence County19.6
26Beaufort County19.4
27Abbeville County19.3
28Newberry County19.2
29Anderson County19.1
30Aiken County18.9
31Lexington County18.6
32Edgefield County18.6
33Lancaster County18.3
34Greenville County18
35Darlington County17.9
36York County17.2
37Williamsburg County16.8
38Spartanburg County16.5
39Charleston County16.4
40Berkeley County15.7
41Richland County15.1
42Greenwood County14
43McCormick County13.9
44Fairfield County13.4
45Calhoun County12.9
46Pickens County12.9

Other periods

About this ranking

People aged 19 to 34 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 19 to 34. 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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, 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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs (Counties in South Carolina by uninsured rate, ages 19 to 34 (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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs, Counties in South Carolina by uninsured rate, ages 19 to 34 (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-19-34/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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. Counties in South Carolina by uninsured rate, ages 19 to 34 (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-19-34/south-carolina-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs, Counties in South Carolina by uninsured rate, ages 19 to 34 (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-19-34/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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs: Counties in South Carolina by uninsured rate, ages 19 to 34 (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-19-34/south-carolina-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, 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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs: Counties in South Carolina by uninsured rate, ages 19 to 34 (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-19-34/south-carolina-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/south-carolina-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, 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 19 to 34 (US, ACS)?

Allendale County, with 35.8% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 19 to 34 (US, ACS)?

Pickens County, with 12.9% 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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 19 to 34 (US, ACS): other rankings

Counties in South Carolina: more rankings