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 2020, at 21.4%. York County had the lowest, at 10.9%. The median was 13.1% and the figure for South Carolina was 12.8%. Source: the U.S. Census Bureau.

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Highest21.4Saluda County
Lowest10.9York County
Median13.146 counties
South Carolina12.8History

Map of counties, 2020

Abbeville County: 15.5 %Aiken County: 11.8 %Allendale County: 11.8 %Anderson County: 14 %Bamberg County: 12.9 %Barnwell County: 14.3 %Beaufort County: 13.8 %Berkeley County: 12.1 %Calhoun County: 12.6 %Charleston County: 11.3 %Cherokee County: 15.2 %Chester County: 13 %Chesterfield County: 15.1 %Clarendon County: 14.3 %Colleton County: 15.3 %Darlington County: 12.2 %Dillon County: 17.6 %Dorchester County: 12.6 %Edgefield County: 13.4 %Fairfield County: 12.1 %Florence County: 12.8 %Georgetown County: 15.1 %Greenville County: 12.3 %Greenwood County: 14.1 %Hampton County: 13.7 %Horry County: 15.5 %Jasper County: 19.9 %Kershaw County: 12 %Lancaster County: 11.9 %Laurens County: 14.7 %Lee County: 12.1 %Lexington County: 10.9 %McCormick County: 12.3 %Marion County: 14.7 %Marlboro County: 14.6 %Newberry County: 15.9 %Oconee County: 15.2 %Orangeburg County: 12.3 %Pickens County: 12.7 %Richland County: 11.7 %Saluda County: 21.4 %Spartanburg County: 12.9 %Sumter County: 14.2 %Union County: 12.4 %Williamsburg County: 13.1 %York County: 10.9 %
  • Under 12
  • 12 to 13
  • 13 to 14
  • 14 to 15
  • 15 and over
%, 2020. 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, 2020

Saluda County: 21.4 %Saluda County21.4Jasper County: 19.9 %Jasper County19.9Dillon County: 17.6 %Dillon County17.6Newberry County: 15.9 %Newberry County15.9Abbeville County: 15.5 %Abbeville County15.5Horry County: 15.5 %Horry County15.5Colleton County: 15.3 %Colleton County15.3Cherokee County: 15.2 %Cherokee County15.2Oconee County: 15.2 %Oconee County15.2Chesterfield County: 15.1 %Chesterfield County15.1Georgetown County: 15.1 %Georgetown County15.1Laurens County: 14.7 %Laurens County14.7Marion County: 14.7 %Marion County14.7Marlboro County: 14.6 %Marlboro County14.6Barnwell County: 14.3 %Barnwell County14.3Clarendon County: 14.3 %Clarendon County14.3Sumter County: 14.2 %Sumter County14.2Greenwood County: 14.1 %Greenwood County14.1Anderson County: 14 %Anderson County14Beaufort County: 13.8 %Beaufort County13.8Hampton County: 13.7 %Hampton County13.7Edgefield County: 13.4 %Edgefield County13.4Williamsburg County: 13.1 %Williamsburg County13.1Chester County: 13 %Chester County13Bamberg County: 12.9 %Bamberg County12.9Spartanburg County: 12.9 %Spartanburg County12.9Florence County: 12.8 %Florence County12.8Pickens County: 12.7 %Pickens County12.7Calhoun County: 12.6 %Calhoun County12.6Dorchester County: 12.6 %Dorchester County12.6Union County: 12.4 %Union County12.4Greenville County: 12.3 %Greenville County12.3McCormick County: 12.3 %McCormick County12.3Orangeburg County: 12.3 %Orangeburg County12.3Darlington County: 12.2 %Darlington County12.2Berkeley County: 12.1 %Berkeley County12.1Fairfield County: 12.1 %Fairfield County12.1Lee County: 12.1 %Lee County12.1Kershaw County: 12 %Kershaw County12Lancaster County: 11.9 %Lancaster County11.9Aiken County: 11.8 %Aiken County11.8Allendale County: 11.8 %Allendale County11.8Richland County: 11.7 %Richland County11.7Charleston County: 11.3 %Charleston County11.3Lexington County: 10.9 %Lexington County10.9York County: 10.9 %York County10.9Saluda County: 21.4 %Saluda County21.4Jasper County: 19.9 %Jasper County19.9Dillon County: 17.6 %Dillon County17.6Newberry County: 15.9 %Newberry County15.9Abbeville County: 15.5 %Abbeville County15.5Horry County: 15.5 %Horry County15.5Colleton County: 15.3 %Colleton County15.3Cherokee County: 15.2 %Cherokee County15.2Oconee County: 15.2 %Oconee County15.2Chesterfield County: 15.1 %Chesterfield County15.1Georgetown County: 15.1 %Georgetown County15.1Laurens County: 14.7 %Laurens County14.7Marion County: 14.7 %Marion County14.7Marlboro County: 14.6 %Marlboro County14.6Barnwell County: 14.3 %Barnwell County14.3Clarendon County: 14.3 %Clarendon County14.3Sumter County: 14.2 %Sumter County14.2Greenwood County: 14.1 %Greenwood County14.1Anderson County: 14 %Anderson County14Beaufort County: 13.8 %Beaufort County13.8Hampton County: 13.7 %Hampton County13.7Edgefield County: 13.4 %Edgefield County13.4Williamsburg County: 13.1 %Williamsburg County13.1Chester County: 13 %Chester County13Bamberg County: 12.9 %Bamberg County12.9Spartanburg County: 12.9 %Spartanburg County12.9Florence County: 12.8 %Florence County12.8Pickens County: 12.7 %Pickens County12.7Calhoun County: 12.6 %Calhoun County12.6Dorchester County: 12.6 %Dorchester County12.6Union County: 12.4 %Union County12.4Greenville County: 12.3 %Greenville County12.3McCormick County: 12.3 %McCormick County12.3Orangeburg County: 12.3 %Orangeburg County12.3Darlington County: 12.2 %Darlington County12.2Berkeley County: 12.1 %Berkeley County12.1Fairfield County: 12.1 %Fairfield County12.1Lee County: 12.1 %Lee County12.1Kershaw County: 12 %Kershaw County12Lancaster County: 11.9 %Lancaster County11.9Aiken County: 11.8 %Aiken County11.8Allendale County: 11.8 %Allendale County11.8Richland County: 11.7 %Richland County11.7Charleston County: 11.3 %Charleston County11.3Lexington County: 10.9 %Lexington County10.9York County: 10.9 %York County10.9
%. 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

RankCounties2020 (%)Change on 2019
1Saluda County21.4+3.8 pts
2Jasper County19.9+0.5 pts
3Dillon County17.6+0.9 pts
4Newberry County15.9+1 pts
5Abbeville County15.5+1.8 pts
5Horry County15.5-2.5 pts
7Colleton County15.3-0.1 pts
8Cherokee County15.2+1.5 pts
8Oconee County15.2+0.4 pts
10Chesterfield County15.1+0.2 pts
10Georgetown County15.1+0.9 pts
12Laurens County14.7+0.5 pts
12Marion County14.7+1.2 pts
14Marlboro County14.6+0.5 pts
15Barnwell County14.3+2.6 pts
15Clarendon County14.3-0.3 pts
17Sumter County14.2+1.7 pts
18Greenwood County14.1-0.2 pts
19Anderson County14+0.9 pts
20Beaufort County13.8-0.6 pts
21Hampton County13.7+0.2 pts
22Edgefield County13.4-0.3 pts
23Williamsburg County13.1-0.8 pts
24Chester County13+0.6 pts
25Bamberg County12.9+0.2 pts
25Spartanburg County12.9-0.1 pts
27Florence County12.8+0.3 pts
28Pickens County12.7-0.5 pts
29Calhoun County12.6-0.5 pts
29Dorchester County12.6+0.9 pts
31Union County12.4-0.1 pts
32Greenville County12.3-1 pts
32McCormick County12.3+0.3 pts
32Orangeburg County12.3-0.7 pts
35Darlington County12.2-0.6 pts
36Berkeley County12.1-0.1 pts
36Fairfield County12.10 pts
36Lee County12.1-0.2 pts
39Kershaw County12-0.3 pts
40Lancaster County11.90 pts
41Aiken County11.8-1.5 pts
41Allendale County11.8+1 pts
43Richland County11.7+0.4 pts
44Charleston County11.3-1.8 pts
45Lexington County10.9-1.5 pts
45York County10.9-0.7 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-2020-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), 2020) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-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), 2020. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2020. 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), 2020. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2020.

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), 2020 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2020,
  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), 2020}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2020. 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-2020-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), 2020
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-2020-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-carolina-counties?period=2020.
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-2020-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 21.4% in 2020, according to the U.S. Census Bureau.

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

York County, with 10.9% in 2020.

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