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 2015, at 23.6%. York County had the lowest, at 13%. The median was 16.4% and the figure for South Carolina was 16.3%. Source: the U.S. Census Bureau.

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Highest23.6Jasper County
Lowest13York County
Median16.446 counties
South Carolina16.3History

Map of counties, 2015

Abbeville County: 16.3 %Aiken County: 15.1 %Allendale County: 16.2 %Anderson County: 16.1 %Bamberg County: 16.9 %Barnwell County: 16.2 %Beaufort County: 19.1 %Berkeley County: 16.2 %Calhoun County: 16 %Charleston County: 15.5 %Cherokee County: 17 %Chester County: 14.8 %Chesterfield County: 18.8 %Clarendon County: 17.6 %Colleton County: 20.1 %Darlington County: 16.7 %Dillon County: 21.9 %Dorchester County: 13.7 %Edgefield County: 15 %Fairfield County: 15.9 %Florence County: 14.8 %Georgetown County: 16.9 %Greenville County: 17.2 %Greenwood County: 19.3 %Hampton County: 15.6 %Horry County: 21.1 %Jasper County: 23.6 %Kershaw County: 16.1 %Lancaster County: 16.1 %Laurens County: 18.5 %Lee County: 16 %Lexington County: 14 %McCormick County: 14.2 %Marion County: 16.7 %Marlboro County: 18.4 %Newberry County: 17.8 %Oconee County: 16.7 %Orangeburg County: 17.3 %Pickens County: 17.3 %Richland County: 13.1 %Saluda County: 23.2 %Spartanburg County: 16.3 %Sumter County: 17.3 %Union County: 14.5 %Williamsburg County: 16.4 %York County: 13 %
  • Under 15
  • 15 to 16
  • 16 to 17
  • 17 to 19
  • 19 and over
%, 2015. 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, 2015

Jasper County: 23.6 %Jasper County23.6Saluda County: 23.2 %Saluda County23.2Dillon County: 21.9 %Dillon County21.9Horry County: 21.1 %Horry County21.1Colleton County: 20.1 %Colleton County20.1Greenwood County: 19.3 %Greenwood County19.3Beaufort County: 19.1 %Beaufort County19.1Chesterfield County: 18.8 %Chesterfield County18.8Laurens County: 18.5 %Laurens County18.5Marlboro County: 18.4 %Marlboro County18.4Newberry County: 17.8 %Newberry County17.8Clarendon County: 17.6 %Clarendon County17.6Orangeburg County: 17.3 %Orangeburg County17.3Pickens County: 17.3 %Pickens County17.3Sumter County: 17.3 %Sumter County17.3Greenville County: 17.2 %Greenville County17.2Cherokee County: 17 %Cherokee County17Bamberg County: 16.9 %Bamberg County16.9Georgetown County: 16.9 %Georgetown County16.9Darlington County: 16.7 %Darlington County16.7Marion County: 16.7 %Marion County16.7Oconee County: 16.7 %Oconee County16.7Williamsburg County: 16.4 %Williamsburg County16.4Abbeville County: 16.3 %Abbeville County16.3Spartanburg County: 16.3 %Spartanburg County16.3Allendale County: 16.2 %Allendale County16.2Barnwell County: 16.2 %Barnwell County16.2Berkeley County: 16.2 %Berkeley County16.2Anderson County: 16.1 %Anderson County16.1Kershaw County: 16.1 %Kershaw County16.1Lancaster County: 16.1 %Lancaster County16.1Calhoun County: 16 %Calhoun County16Lee County: 16 %Lee County16Fairfield County: 15.9 %Fairfield County15.9Hampton County: 15.6 %Hampton County15.6Charleston County: 15.5 %Charleston County15.5Aiken County: 15.1 %Aiken County15.1Edgefield County: 15 %Edgefield County15Chester County: 14.8 %Chester County14.8Florence County: 14.8 %Florence County14.8Union County: 14.5 %Union County14.5McCormick County: 14.2 %McCormick County14.2Lexington County: 14 %Lexington County14Dorchester County: 13.7 %Dorchester County13.7Richland County: 13.1 %Richland County13.1York County: 13 %York County13Jasper County: 23.6 %Jasper County23.6Saluda County: 23.2 %Saluda County23.2Dillon County: 21.9 %Dillon County21.9Horry County: 21.1 %Horry County21.1Colleton County: 20.1 %Colleton County20.1Greenwood County: 19.3 %Greenwood County19.3Beaufort County: 19.1 %Beaufort County19.1Chesterfield County: 18.8 %Chesterfield County18.8Laurens County: 18.5 %Laurens County18.5Marlboro County: 18.4 %Marlboro County18.4Newberry County: 17.8 %Newberry County17.8Clarendon County: 17.6 %Clarendon County17.6Orangeburg County: 17.3 %Orangeburg County17.3Pickens County: 17.3 %Pickens County17.3Sumter County: 17.3 %Sumter County17.3Greenville County: 17.2 %Greenville County17.2Cherokee County: 17 %Cherokee County17Bamberg County: 16.9 %Bamberg County16.9Georgetown County: 16.9 %Georgetown County16.9Darlington County: 16.7 %Darlington County16.7Marion County: 16.7 %Marion County16.7Oconee County: 16.7 %Oconee County16.7Williamsburg County: 16.4 %Williamsburg County16.4Abbeville County: 16.3 %Abbeville County16.3Spartanburg County: 16.3 %Spartanburg County16.3Allendale County: 16.2 %Allendale County16.2Barnwell County: 16.2 %Barnwell County16.2Berkeley County: 16.2 %Berkeley County16.2Anderson County: 16.1 %Anderson County16.1Kershaw County: 16.1 %Kershaw County16.1Lancaster County: 16.1 %Lancaster County16.1Calhoun County: 16 %Calhoun County16Lee County: 16 %Lee County16Fairfield County: 15.9 %Fairfield County15.9Hampton County: 15.6 %Hampton County15.6Charleston County: 15.5 %Charleston County15.5Aiken County: 15.1 %Aiken County15.1Edgefield County: 15 %Edgefield County15Chester County: 14.8 %Chester County14.8Florence County: 14.8 %Florence County14.8Union County: 14.5 %Union County14.5McCormick County: 14.2 %McCormick County14.2Lexington County: 14 %Lexington County14Dorchester County: 13.7 %Dorchester County13.7Richland County: 13.1 %Richland County13.1York County: 13 %York County13
%. 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

RankCounties2015 (%)Change on 2014
1Jasper County23.6-4.4 pts
2Saluda County23.2-2.1 pts
3Dillon County21.9-3.1 pts
4Horry County21.1-4.3 pts
5Colleton County20.1-3.8 pts
6Greenwood County19.3-2.6 pts
7Beaufort County19.1-1.2 pts
8Chesterfield County18.8-4.5 pts
9Laurens County18.5-2.9 pts
10Marlboro County18.4-4 pts
11Newberry County17.8-4 pts
12Clarendon County17.6-4.8 pts
13Orangeburg County17.3-4.7 pts
13Pickens County17.3-2.1 pts
13Sumter County17.3-4.3 pts
16Greenville County17.2-1.8 pts
17Cherokee County17-4.3 pts
18Bamberg County16.9-2.7 pts
18Georgetown County16.9-6.2 pts
20Darlington County16.7-4.7 pts
20Marion County16.7-4.5 pts
20Oconee County16.7-4.2 pts
23Williamsburg County16.4-4 pts
24Abbeville County16.3-4.8 pts
24Spartanburg County16.3-4.2 pts
26Allendale County16.2-5.2 pts
26Barnwell County16.2-4.6 pts
26Berkeley County16.2-2.7 pts
29Anderson County16.1-3.7 pts
29Kershaw County16.1-2.6 pts
29Lancaster County16.1-4.4 pts
32Calhoun County16-4.1 pts
32Lee County16-6.1 pts
34Fairfield County15.9-3.7 pts
35Hampton County15.6-5.8 pts
36Charleston County15.5-3.3 pts
37Aiken County15.1-4.9 pts
38Edgefield County15-4.9 pts
39Chester County14.8-5.9 pts
39Florence County14.8-4.1 pts
41Union County14.5-4.2 pts
42McCormick County14.2-3.8 pts
43Lexington County14-5.6 pts
44Dorchester County13.7-3.4 pts
45Richland County13.1-3.1 pts
46York County13-4.4 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-2015-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), 2015) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-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), 2015. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2015. 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), 2015. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2015.

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), 2015 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2015,
  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), 2015}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2015. 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-2015-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), 2015
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-2015-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-carolina-counties?period=2015.
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-2015-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 23.6% in 2015, according to the U.S. Census Bureau.

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

York County, with 13% in 2015.

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