Counties in South Carolina by uninsured rate, under 19 (US model-based estimate)

Beaufort County had the highest uninsured rate, under 19 (US model-based estimate) of 46 counties in 2018, at 7.9%. Allendale County had the lowest, at 3%. The median was 4.6% and the figure for South Carolina was 4.8%. Source: the U.S. Census Bureau.

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Highest7.9Beaufort County
Median4.646 counties
South Carolina4.8History

Map of counties, 2018

Abbeville County: 4.7 %Aiken County: 4.8 %Allendale County: 3 %Anderson County: 4.6 %Bamberg County: 4.6 %Barnwell County: 4.2 %Beaufort County: 7.9 %Berkeley County: 4.8 %Calhoun County: 5.3 %Charleston County: 4.6 %Cherokee County: 4 %Chester County: 4 %Chesterfield County: 4.8 %Clarendon County: 4.8 %Colleton County: 4.5 %Darlington County: 4 %Dillon County: 4.1 %Dorchester County: 4.5 %Edgefield County: 5.3 %Fairfield County: 3.9 %Florence County: 4.1 %Georgetown County: 5.1 %Greenville County: 5.5 %Greenwood County: 4.6 %Hampton County: 4 %Horry County: 5.5 %Jasper County: 6.9 %Kershaw County: 4.4 %Lancaster County: 5 %Laurens County: 4.7 %Lee County: 3.7 %Lexington County: 4.3 %McCormick County: 5 %Marion County: 4.2 %Marlboro County: 3.9 %Newberry County: 5.6 %Oconee County: 5.3 %Orangeburg County: 4 %Pickens County: 5.2 %Richland County: 4.1 %Saluda County: 7.3 %Spartanburg County: 5.4 %Sumter County: 4.2 %Union County: 4 %Williamsburg County: 3.9 %York County: 3.6 %
  • Under 4
  • 4 to 4.2
  • 4.2 to 4.6
  • 4.6 to 4.8
  • 4.8 to 5.3
  • 5.3 and over
%, 2018. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2018

Beaufort County: 7.9 %Beaufort County7.9Saluda County: 7.3 %Saluda County7.3Jasper County: 6.9 %Jasper County6.9Newberry County: 5.6 %Newberry County5.6Greenville County: 5.5 %Greenville County5.5Horry County: 5.5 %Horry County5.5Spartanburg County: 5.4 %Spartanburg County5.4Calhoun County: 5.3 %Calhoun County5.3Edgefield County: 5.3 %Edgefield County5.3Oconee County: 5.3 %Oconee County5.3Pickens County: 5.2 %Pickens County5.2Georgetown County: 5.1 %Georgetown County5.1Lancaster County: 5 %Lancaster County5McCormick County: 5 %McCormick County5Aiken County: 4.8 %Aiken County4.8Berkeley County: 4.8 %Berkeley County4.8Chesterfield County: 4.8 %Chesterfield County4.8Clarendon County: 4.8 %Clarendon County4.8Abbeville County: 4.7 %Abbeville County4.7Laurens County: 4.7 %Laurens County4.7Anderson County: 4.6 %Anderson County4.6Bamberg County: 4.6 %Bamberg County4.6Charleston County: 4.6 %Charleston County4.6Greenwood County: 4.6 %Greenwood County4.6Colleton County: 4.5 %Colleton County4.5Dorchester County: 4.5 %Dorchester County4.5Kershaw County: 4.4 %Kershaw County4.4Lexington County: 4.3 %Lexington County4.3Barnwell County: 4.2 %Barnwell County4.2Marion County: 4.2 %Marion County4.2Sumter County: 4.2 %Sumter County4.2Dillon County: 4.1 %Dillon County4.1Florence County: 4.1 %Florence County4.1Richland County: 4.1 %Richland County4.1Cherokee County: 4 %Cherokee County4Chester County: 4 %Chester County4Darlington County: 4 %Darlington County4Hampton County: 4 %Hampton County4Orangeburg County: 4 %Orangeburg County4Union County: 4 %Union County4Fairfield County: 3.9 %Fairfield County3.9Marlboro County: 3.9 %Marlboro County3.9Williamsburg County: 3.9 %Williamsburg County3.9Lee County: 3.7 %Lee County3.7York County: 3.6 %York County3.6Allendale County: 3 %Allendale County3Beaufort County: 7.9 %Beaufort County7.9Saluda County: 7.3 %Saluda County7.3Jasper County: 6.9 %Jasper County6.9Newberry County: 5.6 %Newberry County5.6Greenville County: 5.5 %Greenville County5.5Horry County: 5.5 %Horry County5.5Spartanburg County: 5.4 %Spartanburg County5.4Calhoun County: 5.3 %Calhoun County5.3Edgefield County: 5.3 %Edgefield County5.3Oconee County: 5.3 %Oconee County5.3Pickens County: 5.2 %Pickens County5.2Georgetown County: 5.1 %Georgetown County5.1Lancaster County: 5 %Lancaster County5McCormick County: 5 %McCormick County5Aiken County: 4.8 %Aiken County4.8Berkeley County: 4.8 %Berkeley County4.8Chesterfield County: 4.8 %Chesterfield County4.8Clarendon County: 4.8 %Clarendon County4.8Abbeville County: 4.7 %Abbeville County4.7Laurens County: 4.7 %Laurens County4.7Anderson County: 4.6 %Anderson County4.6Bamberg County: 4.6 %Bamberg County4.6Charleston County: 4.6 %Charleston County4.6Greenwood County: 4.6 %Greenwood County4.6Colleton County: 4.5 %Colleton County4.5Dorchester County: 4.5 %Dorchester County4.5Kershaw County: 4.4 %Kershaw County4.4Lexington County: 4.3 %Lexington County4.3Barnwell County: 4.2 %Barnwell County4.2Marion County: 4.2 %Marion County4.2Sumter County: 4.2 %Sumter County4.2Dillon County: 4.1 %Dillon County4.1Florence County: 4.1 %Florence County4.1Richland County: 4.1 %Richland County4.1Cherokee County: 4 %Cherokee County4Chester County: 4 %Chester County4Darlington County: 4 %Darlington County4Hampton County: 4 %Hampton County4Orangeburg County: 4 %Orangeburg County4Union County: 4 %Union County4Fairfield County: 3.9 %Fairfield County3.9Marlboro County: 3.9 %Marlboro County3.9Williamsburg County: 3.9 %Williamsburg County3.9Lee County: 3.7 %Lee County3.7York County: 3.6 %York County3.6Allendale County: 3 %Allendale County3
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Beaufort County7.9-0.7 pts
2Saluda County7.3+0.5 pts
3Jasper County6.90 pts
4Newberry County5.6-0.7 pts
5Greenville County5.5-0.2 pts
5Horry County5.5-1 pts
7Spartanburg County5.4+0.2 pts
8Calhoun County5.3-0.3 pts
8Edgefield County5.3-0.3 pts
8Oconee County5.3-0.4 pts
11Pickens County5.2+0.1 pts
12Georgetown County5.1-0.5 pts
13Lancaster County5+0.1 pts
13McCormick County5-0.9 pts
15Aiken County4.8-0.3 pts
15Berkeley County4.8-0.3 pts
15Chesterfield County4.8+0.2 pts
15Clarendon County4.80 pts
19Abbeville County4.7-0.2 pts
19Laurens County4.70 pts
21Anderson County4.6-1.2 pts
21Bamberg County4.6-0.1 pts
21Charleston County4.6-1.5 pts
21Greenwood County4.6-0.7 pts
25Colleton County4.5-0.7 pts
25Dorchester County4.5-0.6 pts
27Kershaw County4.40 pts
28Lexington County4.3-0.6 pts
29Barnwell County4.2-0.3 pts
29Marion County4.2+0.3 pts
29Sumter County4.2-0.3 pts
32Dillon County4.1-1 pts
32Florence County4.10 pts
32Richland County4.1+0.1 pts
35Cherokee County4-0.4 pts
35Chester County4-0.1 pts
35Darlington County4-0.5 pts
35Hampton County4-0.2 pts
35Orangeburg County4-0.1 pts
35Union County4+0.2 pts
41Fairfield County3.9-0.5 pts
41Marlboro County3.9-0.2 pts
41Williamsburg County3.9+0.2 pts
44Lee County3.7-0.1 pts
45York County3.6-0.6 pts
46Allendale County3-0.3 pts

Other periods

About this ranking

People under 19 without health insurance coverage of any kind, as a percentage of all people under 19. 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. Under 19 matches the age limit for children in Medicaid and the Children's Health Insurance Program (CHIP).

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 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-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 19, all races, both sexes, all income levels, states and counties (Counties in South Carolina by uninsured rate, under 19 (US model-based estimate), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in South Carolina by uninsured rate, under 19 (US model-based estimate), 2018. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-carolina-counties?period=2018. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Counties in South Carolina by uninsured rate, under 19 (US model-based estimate), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-carolina-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in South Carolina by uninsured rate, under 19 (US model-based estimate), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/south-carolina-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2018,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in South Carolina by uninsured rate, under 19 (US model-based estimate), 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-carolina-counties?period=2018. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in South Carolina by uninsured rate, under 19 (US model-based estimate), 2018
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-2018-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/south-carolina-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-carolina-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest uninsured rate, under 19 (US model-based estimate)?

Beaufort County, with 7.9% in 2018, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 19 (US model-based estimate)?

Allendale County, with 3% in 2018.

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 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 19 (US model-based estimate): other rankings

Counties in South Carolina: more rankings