Counties in South Carolina by uninsured rate, under 65 (US model-based estimate)

Saluda County had the highest uninsured rate, under 65 (US model-based estimate) of 46 counties in 2021, at 18.6%. Richland County had the lowest, at 10%. The median was 12.9% and the figure for South Carolina was 12.3%. Source: the U.S. Census Bureau.

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Highest18.6Saluda County
Median12.946 counties
South Carolina12.3History

Map of counties, 2021

Abbeville County: 13.2 %Aiken County: 12 %Allendale County: 12.5 %Anderson County: 13.2 %Bamberg County: 14.2 %Barnwell County: 13.5 %Beaufort County: 14.1 %Berkeley County: 10.7 %Calhoun County: 12.4 %Charleston County: 10.6 %Cherokee County: 13.3 %Chester County: 12 %Chesterfield County: 14.1 %Clarendon County: 15 %Colleton County: 14.6 %Darlington County: 12.6 %Dillon County: 13 %Dorchester County: 11.5 %Edgefield County: 13.8 %Fairfield County: 10.4 %Florence County: 11.5 %Georgetown County: 13.6 %Greenville County: 12.2 %Greenwood County: 13.8 %Hampton County: 12.9 %Horry County: 16.7 %Jasper County: 18.4 %Kershaw County: 11.8 %Lancaster County: 11.9 %Laurens County: 14.3 %Lee County: 11.9 %Lexington County: 11.3 %McCormick County: 12.1 %Marion County: 12.9 %Marlboro County: 13.4 %Newberry County: 14.1 %Oconee County: 14.3 %Orangeburg County: 13 %Pickens County: 13 %Richland County: 10 %Saluda County: 18.6 %Spartanburg County: 12.4 %Sumter County: 11.2 %Union County: 12.4 %Williamsburg County: 12.6 %York County: 10.1 %
  • Under 12
  • 12 to 13
  • 13 to 14
  • 14 and over
%, 2021. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Saluda County: 18.6 %Saluda County18.6Jasper County: 18.4 %Jasper County18.4Horry County: 16.7 %Horry County16.7Clarendon County: 15 %Clarendon County15Colleton County: 14.6 %Colleton County14.6Laurens County: 14.3 %Laurens County14.3Oconee County: 14.3 %Oconee County14.3Bamberg County: 14.2 %Bamberg County14.2Beaufort County: 14.1 %Beaufort County14.1Chesterfield County: 14.1 %Chesterfield County14.1Newberry County: 14.1 %Newberry County14.1Edgefield County: 13.8 %Edgefield County13.8Greenwood County: 13.8 %Greenwood County13.8Georgetown County: 13.6 %Georgetown County13.6Barnwell County: 13.5 %Barnwell County13.5Marlboro County: 13.4 %Marlboro County13.4Cherokee County: 13.3 %Cherokee County13.3Abbeville County: 13.2 %Abbeville County13.2Anderson County: 13.2 %Anderson County13.2Dillon County: 13 %Dillon County13Orangeburg County: 13 %Orangeburg County13Pickens County: 13 %Pickens County13Hampton County: 12.9 %Hampton County12.9Marion County: 12.9 %Marion County12.9Darlington County: 12.6 %Darlington County12.6Williamsburg County: 12.6 %Williamsburg County12.6Allendale County: 12.5 %Allendale County12.5Calhoun County: 12.4 %Calhoun County12.4Spartanburg County: 12.4 %Spartanburg County12.4Union County: 12.4 %Union County12.4Greenville County: 12.2 %Greenville County12.2McCormick County: 12.1 %McCormick County12.1Aiken County: 12 %Aiken County12Chester County: 12 %Chester County12Lancaster County: 11.9 %Lancaster County11.9Lee County: 11.9 %Lee County11.9Kershaw County: 11.8 %Kershaw County11.8Dorchester County: 11.5 %Dorchester County11.5Florence County: 11.5 %Florence County11.5Lexington County: 11.3 %Lexington County11.3Sumter County: 11.2 %Sumter County11.2Berkeley County: 10.7 %Berkeley County10.7Charleston County: 10.6 %Charleston County10.6Fairfield County: 10.4 %Fairfield County10.4York County: 10.1 %York County10.1Richland County: 10 %Richland County10Saluda County: 18.6 %Saluda County18.6Jasper County: 18.4 %Jasper County18.4Horry County: 16.7 %Horry County16.7Clarendon County: 15 %Clarendon County15Colleton County: 14.6 %Colleton County14.6Laurens County: 14.3 %Laurens County14.3Oconee County: 14.3 %Oconee County14.3Bamberg County: 14.2 %Bamberg County14.2Beaufort County: 14.1 %Beaufort County14.1Chesterfield County: 14.1 %Chesterfield County14.1Newberry County: 14.1 %Newberry County14.1Edgefield County: 13.8 %Edgefield County13.8Greenwood County: 13.8 %Greenwood County13.8Georgetown County: 13.6 %Georgetown County13.6Barnwell County: 13.5 %Barnwell County13.5Marlboro County: 13.4 %Marlboro County13.4Cherokee County: 13.3 %Cherokee County13.3Abbeville County: 13.2 %Abbeville County13.2Anderson County: 13.2 %Anderson County13.2Dillon County: 13 %Dillon County13Orangeburg County: 13 %Orangeburg County13Pickens County: 13 %Pickens County13Hampton County: 12.9 %Hampton County12.9Marion County: 12.9 %Marion County12.9Darlington County: 12.6 %Darlington County12.6Williamsburg County: 12.6 %Williamsburg County12.6Allendale County: 12.5 %Allendale County12.5Calhoun County: 12.4 %Calhoun County12.4Spartanburg County: 12.4 %Spartanburg County12.4Union County: 12.4 %Union County12.4Greenville County: 12.2 %Greenville County12.2McCormick County: 12.1 %McCormick County12.1Aiken County: 12 %Aiken County12Chester County: 12 %Chester County12Lancaster County: 11.9 %Lancaster County11.9Lee County: 11.9 %Lee County11.9Kershaw County: 11.8 %Kershaw County11.8Dorchester County: 11.5 %Dorchester County11.5Florence County: 11.5 %Florence County11.5Lexington County: 11.3 %Lexington County11.3Sumter County: 11.2 %Sumter County11.2Berkeley County: 10.7 %Berkeley County10.7Charleston County: 10.6 %Charleston County10.6Fairfield County: 10.4 %Fairfield County10.4York County: 10.1 %York County10.1Richland County: 10 %Richland County10
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)Change on 2020
1Saluda County18.6-2.8 pts
2Jasper County18.4-1.5 pts
3Horry County16.7+1.2 pts
4Clarendon County15+0.7 pts
5Colleton County14.6-0.7 pts
6Laurens County14.3-0.4 pts
6Oconee County14.3-0.9 pts
8Bamberg County14.2+1.3 pts
9Beaufort County14.1+0.3 pts
9Chesterfield County14.1-1 pts
9Newberry County14.1-1.8 pts
12Edgefield County13.8+0.4 pts
12Greenwood County13.8-0.3 pts
14Georgetown County13.6-1.5 pts
15Barnwell County13.5-0.8 pts
16Marlboro County13.4-1.2 pts
17Cherokee County13.3-1.9 pts
18Abbeville County13.2-2.3 pts
18Anderson County13.2-0.8 pts
20Dillon County13-4.6 pts
20Orangeburg County13+0.7 pts
20Pickens County13+0.3 pts
23Hampton County12.9-0.8 pts
23Marion County12.9-1.8 pts
25Darlington County12.6+0.4 pts
25Williamsburg County12.6-0.5 pts
27Allendale County12.5+0.7 pts
28Calhoun County12.4-0.2 pts
28Spartanburg County12.4-0.5 pts
28Union County12.40 pts
31Greenville County12.2-0.1 pts
32McCormick County12.1-0.2 pts
33Aiken County12+0.2 pts
33Chester County12-1 pts
35Lancaster County11.90 pts
35Lee County11.9-0.2 pts
37Kershaw County11.8-0.2 pts
38Dorchester County11.5-1.1 pts
38Florence County11.5-1.3 pts
40Lexington County11.3+0.4 pts
41Sumter County11.2-3 pts
42Berkeley County10.7-1.4 pts
43Charleston County10.6-0.7 pts
44Fairfield County10.4-1.7 pts
45York County10.1-0.8 pts
46Richland County10-1.7 pts

Other periods

About this ranking

People under 65 without health insurance coverage of any kind, as a percentage of all people under 65. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. People 65 and over are left out because nearly all of them have Medicare.

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. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. 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). Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties (Counties in South Carolina by uninsured rate, under 65 (US model-based estimate), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in South Carolina by uninsured rate, under 65 (US model-based estimate), 2021. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Counties in South Carolina by uninsured rate, under 65 (US model-based estimate), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in South Carolina by uninsured rate, under 65 (US model-based estimate), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2021,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in South Carolina by uninsured rate, under 65 (US model-based estimate), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2021. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in South Carolina by uninsured rate, under 65 (US model-based estimate), 2021
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest uninsured rate, under 65 (US model-based estimate)?

Saluda County, with 18.6% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 65 (US model-based estimate)?

Richland County, with 10% 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, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 65 (US model-based estimate): other rankings

Counties in South Carolina: more rankings