Counties in South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate)

Jasper County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 46 counties in 2017, at 25.2%. Richland County had the lowest, at 13.5%. The median was 16% and the figure for South Carolina was 16.1%. Source: the U.S. Census Bureau.

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Highest25.2Jasper County
Lowest13.5Richland County
Median1646 counties
South Carolina16.1History

Map of counties, 2017

Abbeville County: 15.9 %Aiken County: 16.6 %Allendale County: 15 %Anderson County: 16.3 %Bamberg County: 16.2 %Barnwell County: 16 %Beaufort County: 17.8 %Berkeley County: 14.5 %Calhoun County: 15 %Charleston County: 16 %Cherokee County: 17.5 %Chester County: 15.2 %Chesterfield County: 18.6 %Clarendon County: 17.9 %Colleton County: 16.8 %Darlington County: 15.2 %Dillon County: 20.5 %Dorchester County: 13.9 %Edgefield County: 15.9 %Fairfield County: 14 %Florence County: 14.5 %Georgetown County: 15.9 %Greenville County: 16.1 %Greenwood County: 18.1 %Hampton County: 15.5 %Horry County: 20.9 %Jasper County: 25.2 %Kershaw County: 14.6 %Lancaster County: 16.6 %Laurens County: 17.7 %Lee County: 14.9 %Lexington County: 14.9 %McCormick County: 13.6 %Marion County: 17.4 %Marlboro County: 18.4 %Newberry County: 18 %Oconee County: 18.4 %Orangeburg County: 17.7 %Pickens County: 15.7 %Richland County: 13.5 %Saluda County: 22.9 %Spartanburg County: 16 %Sumter County: 16.2 %Union County: 15.1 %Williamsburg County: 15.1 %York County: 13.9 %
  • Under 15
  • 15 to 16
  • 16 to 17
  • 17 to 18
  • 18 and over
%, 2017. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2017

Jasper County: 25.2 %Jasper County25.2Saluda County: 22.9 %Saluda County22.9Horry County: 20.9 %Horry County20.9Dillon County: 20.5 %Dillon County20.5Chesterfield County: 18.6 %Chesterfield County18.6Marlboro County: 18.4 %Marlboro County18.4Oconee County: 18.4 %Oconee County18.4Greenwood County: 18.1 %Greenwood County18.1Newberry County: 18 %Newberry County18Clarendon County: 17.9 %Clarendon County17.9Beaufort County: 17.8 %Beaufort County17.8Laurens County: 17.7 %Laurens County17.7Orangeburg County: 17.7 %Orangeburg County17.7Cherokee County: 17.5 %Cherokee County17.5Marion County: 17.4 %Marion County17.4Colleton County: 16.8 %Colleton County16.8Aiken County: 16.6 %Aiken County16.6Lancaster County: 16.6 %Lancaster County16.6Anderson County: 16.3 %Anderson County16.3Bamberg County: 16.2 %Bamberg County16.2Sumter County: 16.2 %Sumter County16.2Greenville County: 16.1 %Greenville County16.1Barnwell County: 16 %Barnwell County16Charleston County: 16 %Charleston County16Spartanburg County: 16 %Spartanburg County16Abbeville County: 15.9 %Abbeville County15.9Edgefield County: 15.9 %Edgefield County15.9Georgetown County: 15.9 %Georgetown County15.9Pickens County: 15.7 %Pickens County15.7Hampton County: 15.5 %Hampton County15.5Chester County: 15.2 %Chester County15.2Darlington County: 15.2 %Darlington County15.2Union County: 15.1 %Union County15.1Williamsburg County: 15.1 %Williamsburg County15.1Allendale County: 15 %Allendale County15Calhoun County: 15 %Calhoun County15Lee County: 14.9 %Lee County14.9Lexington County: 14.9 %Lexington County14.9Kershaw County: 14.6 %Kershaw County14.6Berkeley County: 14.5 %Berkeley County14.5Florence County: 14.5 %Florence County14.5Fairfield County: 14 %Fairfield County14Dorchester County: 13.9 %Dorchester County13.9York County: 13.9 %York County13.9McCormick County: 13.6 %McCormick County13.6Richland County: 13.5 %Richland County13.5Jasper County: 25.2 %Jasper County25.2Saluda County: 22.9 %Saluda County22.9Horry County: 20.9 %Horry County20.9Dillon County: 20.5 %Dillon County20.5Chesterfield County: 18.6 %Chesterfield County18.6Marlboro County: 18.4 %Marlboro County18.4Oconee County: 18.4 %Oconee County18.4Greenwood County: 18.1 %Greenwood County18.1Newberry County: 18 %Newberry County18Clarendon County: 17.9 %Clarendon County17.9Beaufort County: 17.8 %Beaufort County17.8Laurens County: 17.7 %Laurens County17.7Orangeburg County: 17.7 %Orangeburg County17.7Cherokee County: 17.5 %Cherokee County17.5Marion County: 17.4 %Marion County17.4Colleton County: 16.8 %Colleton County16.8Aiken County: 16.6 %Aiken County16.6Lancaster County: 16.6 %Lancaster County16.6Anderson County: 16.3 %Anderson County16.3Bamberg County: 16.2 %Bamberg County16.2Sumter County: 16.2 %Sumter County16.2Greenville County: 16.1 %Greenville County16.1Barnwell County: 16 %Barnwell County16Charleston County: 16 %Charleston County16Spartanburg County: 16 %Spartanburg County16Abbeville County: 15.9 %Abbeville County15.9Edgefield County: 15.9 %Edgefield County15.9Georgetown County: 15.9 %Georgetown County15.9Pickens County: 15.7 %Pickens County15.7Hampton County: 15.5 %Hampton County15.5Chester County: 15.2 %Chester County15.2Darlington County: 15.2 %Darlington County15.2Union County: 15.1 %Union County15.1Williamsburg County: 15.1 %Williamsburg County15.1Allendale County: 15 %Allendale County15Calhoun County: 15 %Calhoun County15Lee County: 14.9 %Lee County14.9Lexington County: 14.9 %Lexington County14.9Kershaw County: 14.6 %Kershaw County14.6Berkeley County: 14.5 %Berkeley County14.5Florence County: 14.5 %Florence County14.5Fairfield County: 14 %Fairfield County14Dorchester County: 13.9 %Dorchester County13.9York County: 13.9 %York County13.9McCormick County: 13.6 %McCormick County13.6Richland County: 13.5 %Richland County13.5
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2017 (%)Change on 2016
1Jasper County25.2+2.7 pts
2Saluda County22.9+1.3 pts
3Horry County20.9+1.5 pts
4Dillon County20.5+1.8 pts
5Chesterfield County18.6+1.1 pts
6Marlboro County18.4+1 pts
6Oconee County18.4+1.1 pts
8Greenwood County18.1+1.4 pts
9Newberry County18+1.5 pts
10Clarendon County17.9+0.4 pts
11Beaufort County17.8+0.9 pts
12Laurens County17.7+2.7 pts
12Orangeburg County17.7+1.2 pts
14Cherokee County17.5+2.4 pts
15Marion County17.4+0.5 pts
16Colleton County16.8+0.1 pts
17Aiken County16.6+2.2 pts
17Lancaster County16.6+3.9 pts
19Anderson County16.3+1.6 pts
20Bamberg County16.2+0.9 pts
20Sumter County16.2+1 pts
22Greenville County16.1+0.6 pts
23Barnwell County16+2.2 pts
23Charleston County16+0.8 pts
23Spartanburg County16+0.4 pts
26Abbeville County15.9+0.8 pts
26Edgefield County15.9+0.8 pts
26Georgetown County15.9-0.8 pts
29Pickens County15.7+0.2 pts
30Hampton County15.5+0.6 pts
31Chester County15.2+0.5 pts
31Darlington County15.2-0.4 pts
33Union County15.1+1 pts
33Williamsburg County15.1-0.4 pts
35Allendale County15+0.8 pts
35Calhoun County15+0.2 pts
37Lee County14.9-1.3 pts
37Lexington County14.9+1.2 pts
39Kershaw County14.6-0.3 pts
40Berkeley County14.5+0.3 pts
40Florence County14.5+1.4 pts
42Fairfield County14-0.7 pts
43Dorchester County13.9+1.4 pts
43York County13.9+0.9 pts
45McCormick County13.6+0.7 pts
46Richland County13.5+1.8 pts

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. 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. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

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, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-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, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2017) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2017. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2017. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2017. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2017.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2017 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2017 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2017,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2017}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2017. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in South Carolina by uninsured rate, ages 18 to 64 (US model-based estimate), 2017
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-2017-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2017.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Jasper County, with 25.2% in 2017, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Richland County, with 13.5% in 2017.

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, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in South Carolina: more rankings