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

Colleton County had the highest uninsured rate, ages 35 to 64 (US, ACS) of 46 counties in 2023, at 21.6%. Fairfield County had the lowest, at 7%. The median was 13.5% and the figure for South Carolina was 13.1%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest21.6Colleton County
Median13.546 counties
South Carolina13.1History

Map of counties, 2023

Abbeville County: 13.3 %Aiken County: 12.2 %Allendale County: 17 %Anderson County: 13.2 %Bamberg County: 17 %Barnwell County: 16.5 %Beaufort County: 12.5 %Berkeley County: 13.1 %Calhoun County: 13.4 %Charleston County: 10.4 %Cherokee County: 14.8 %Chester County: 16.1 %Chesterfield County: 16.3 %Clarendon County: 14.6 %Colleton County: 21.6 %Darlington County: 12.1 %Dillon County: 21.1 %Dorchester County: 13.2 %Edgefield County: 11.6 %Fairfield County: 7 %Florence County: 13.6 %Georgetown County: 15.2 %Greenville County: 13 %Greenwood County: 11.6 %Hampton County: 13.4 %Horry County: 17.2 %Jasper County: 18.7 %Kershaw County: 12.3 %Lancaster County: 10.9 %Laurens County: 17.4 %Lee County: 12.6 %Lexington County: 10.8 %McCormick County: 7 %Marion County: 17.2 %Marlboro County: 19.7 %Newberry County: 11.1 %Oconee County: 14.2 %Orangeburg County: 14.8 %Pickens County: 13.3 %Richland County: 10.5 %Saluda County: 20.2 %Spartanburg County: 14.1 %Sumter County: 14.5 %Union County: 15.5 %Williamsburg County: 17.7 %York County: 10.1 %
  • Under 11
  • 11 to 13
  • 13 to 15
  • 15 to 17
  • 17 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Colleton County: 21.6 %Colleton County21.6Dillon County: 21.1 %Dillon County21.1Saluda County: 20.2 %Saluda County20.2Marlboro County: 19.7 %Marlboro County19.7Jasper County: 18.7 %Jasper County18.7Williamsburg County: 17.7 %Williamsburg County17.7Laurens County: 17.4 %Laurens County17.4Horry County: 17.2 %Horry County17.2Marion County: 17.2 %Marion County17.2Allendale County: 17 %Allendale County17Bamberg County: 17 %Bamberg County17Barnwell County: 16.5 %Barnwell County16.5Chesterfield County: 16.3 %Chesterfield County16.3Chester County: 16.1 %Chester County16.1Union County: 15.5 %Union County15.5Georgetown County: 15.2 %Georgetown County15.2Cherokee County: 14.8 %Cherokee County14.8Orangeburg County: 14.8 %Orangeburg County14.8Clarendon County: 14.6 %Clarendon County14.6Sumter County: 14.5 %Sumter County14.5Oconee County: 14.2 %Oconee County14.2Spartanburg County: 14.1 %Spartanburg County14.1Florence County: 13.6 %Florence County13.6Calhoun County: 13.4 %Calhoun County13.4Hampton County: 13.4 %Hampton County13.4Pickens County: 13.3 %Pickens County13.3Abbeville County: 13.3 %Abbeville County13.3Anderson County: 13.2 %Anderson County13.2Dorchester County: 13.2 %Dorchester County13.2Berkeley County: 13.1 %Berkeley County13.1Greenville County: 13 %Greenville County13Lee County: 12.6 %Lee County12.6Beaufort County: 12.5 %Beaufort County12.5Kershaw County: 12.3 %Kershaw County12.3Aiken County: 12.2 %Aiken County12.2Darlington County: 12.1 %Darlington County12.1Greenwood County: 11.6 %Greenwood County11.6Edgefield County: 11.6 %Edgefield County11.6Newberry County: 11.1 %Newberry County11.1Lancaster County: 10.9 %Lancaster County10.9Lexington County: 10.8 %Lexington County10.8Richland County: 10.5 %Richland County10.5Charleston County: 10.4 %Charleston County10.4York County: 10.1 %York County10.1McCormick County: 7 %McCormick County7Fairfield County: 7 %Fairfield County7Colleton County: 21.6 %Colleton County21.6Dillon County: 21.1 %Dillon County21.1Saluda County: 20.2 %Saluda County20.2Marlboro County: 19.7 %Marlboro County19.7Jasper County: 18.7 %Jasper County18.7Williamsburg County: 17.7 %Williamsburg County17.7Laurens County: 17.4 %Laurens County17.4Horry County: 17.2 %Horry County17.2Marion County: 17.2 %Marion County17.2Allendale County: 17 %Allendale County17Bamberg County: 17 %Bamberg County17Barnwell County: 16.5 %Barnwell County16.5Chesterfield County: 16.3 %Chesterfield County16.3Chester County: 16.1 %Chester County16.1Union County: 15.5 %Union County15.5Georgetown County: 15.2 %Georgetown County15.2Cherokee County: 14.8 %Cherokee County14.8Orangeburg County: 14.8 %Orangeburg County14.8Clarendon County: 14.6 %Clarendon County14.6Sumter County: 14.5 %Sumter County14.5Oconee County: 14.2 %Oconee County14.2Spartanburg County: 14.1 %Spartanburg County14.1Florence County: 13.6 %Florence County13.6Calhoun County: 13.4 %Calhoun County13.4Hampton County: 13.4 %Hampton County13.4Pickens County: 13.3 %Pickens County13.3Abbeville County: 13.3 %Abbeville County13.3Anderson County: 13.2 %Anderson County13.2Dorchester County: 13.2 %Dorchester County13.2Berkeley County: 13.1 %Berkeley County13.1Greenville County: 13 %Greenville County13Lee County: 12.6 %Lee County12.6Beaufort County: 12.5 %Beaufort County12.5Kershaw County: 12.3 %Kershaw County12.3Aiken County: 12.2 %Aiken County12.2Darlington County: 12.1 %Darlington County12.1Greenwood County: 11.6 %Greenwood County11.6Edgefield County: 11.6 %Edgefield County11.6Newberry County: 11.1 %Newberry County11.1Lancaster County: 10.9 %Lancaster County10.9Lexington County: 10.8 %Lexington County10.8Richland County: 10.5 %Richland County10.5Charleston County: 10.4 %Charleston County10.4York County: 10.1 %York County10.1McCormick County: 7 %McCormick County7Fairfield County: 7 %Fairfield County7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Colleton County21.6-0.9 pts
2Dillon County21.1-0.1 pts
3Saluda County20.2-2.1 pts
4Marlboro County19.7+0.5 pts
5Jasper County18.7-1.6 pts
6Williamsburg County17.7-1.4 pts
7Laurens County17.4-1.4 pts
8Horry County17.2-1.5 pts
9Marion County17.2+0.4 pts
10Allendale County17+2.1 pts
11Bamberg County17+2.6 pts
12Barnwell County16.5+1.2 pts
13Chesterfield County16.3-1 pts
14Chester County16.1+0.5 pts
15Union County15.5+0.7 pts
16Georgetown County15.2-0.7 pts
17Cherokee County14.8-1.1 pts
18Orangeburg County14.8-0.1 pts
19Clarendon County14.6-0.8 pts
20Sumter County14.5-0.3 pts
21Oconee County14.2-1 pts
22Spartanburg County14.10 pts
23Florence County13.6-1.1 pts
24Calhoun County13.4-3.2 pts
25Hampton County13.4+0.6 pts
26Pickens County13.3+0.1 pts
27Abbeville County13.3-1.3 pts
28Anderson County13.2-0.2 pts
28Dorchester County13.2+0.4 pts
30Berkeley County13.1-1 pts
31Greenville County13-0.1 pts
32Lee County12.6-1.1 pts
33Beaufort County12.5-0.8 pts
34Kershaw County12.3+0.6 pts
35Aiken County12.2-0.5 pts
36Darlington County12.1+0.2 pts
37Greenwood County11.6-1.5 pts
38Edgefield County11.6-2.9 pts
39Newberry County11.1-0.8 pts
40Lancaster County10.9+0.4 pts
41Lexington County10.8-0.4 pts
42Richland County10.5-0.3 pts
43Charleston County10.4+0.1 pts
44York County10.1-0.1 pts
45McCormick County7-2 pts
46Fairfield County7-2.1 pts

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/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 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), 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 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), 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-ages-35-64/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 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), 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-ages-35-64/south-carolina-counties?period=2023.

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), 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-ages-35-64/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 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), 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-ages-35-64/south-carolina-counties?period=2023. 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/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 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), 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-ages-35-64/south-carolina-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-carolina-counties?period=2023.
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/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Retrieved 2026-10-12.
ER  - 
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in South Carolina by uninsured rate, ages 35 to 64 (US, ACS) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate_35_64","level":"province","within":"South Carolina","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=uninsured_rate_35_64&level=province&within=South%20Carolina&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

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

Colleton County, with 21.6% in 2023, according to the U.S. Census Bureau.

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

Fairfield County, with 7% 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 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