Data / Rankings / Population aged 18 to 64 / Counties in South Carolina

Counties in South Carolina by population aged 18 to 64, 2025

Richland County had the highest population aged 18 to 64 of 46 counties in 2025, at 63.6%. McCormick County had the lowest, at 44.9%. The median was 56.7% and the figure for South Carolina was 58.3%. Source: the U.S. Census Bureau.

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Highest63.6Richland County
Lowest44.9McCormick County
Median56.746 counties
South Carolina58.3History

Map of counties, 2025

Abbeville County: 55.7 %Aiken County: 55.9 %Allendale County: 56.4 %Anderson County: 58.1 %Bamberg County: 56.6 %Barnwell County: 55 %Beaufort County: 52.9 %Berkeley County: 60.9 %Calhoun County: 54.4 %Charleston County: 61.8 %Cherokee County: 58.3 %Chester County: 57.7 %Chesterfield County: 56.8 %Clarendon County: 54.1 %Colleton County: 54.8 %Darlington County: 55.8 %Dillon County: 55.3 %Dorchester County: 59.2 %Edgefield County: 61.1 %Fairfield County: 53.8 %Florence County: 57.1 %Georgetown County: 50.2 %Greenville County: 59.4 %Greenwood County: 57 %Hampton County: 56.9 %Horry County: 53.9 %Jasper County: 54.9 %Kershaw County: 56.9 %Lancaster County: 55.2 %Laurens County: 58 %Lee County: 57 %Lexington County: 58.4 %McCormick County: 44.9 %Marion County: 54.1 %Marlboro County: 59.6 %Newberry County: 56.1 %Oconee County: 54.9 %Orangeburg County: 56.9 %Pickens County: 62.8 %Richland County: 63.6 %Saluda County: 54.2 %Spartanburg County: 59.6 %Sumter County: 57.2 %Union County: 56 %Williamsburg County: 56 %York County: 59.6 %
  • Under 54
  • 54 to 56
  • 56 to 57
  • 57 to 59
  • 59 and over
%, 2025. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2025

Richland County: 63.6 %Richland County63.6Pickens County: 62.8 %Pickens County62.8Charleston County: 61.8 %Charleston County61.8Edgefield County: 61.1 %Edgefield County61.1Berkeley County: 60.9 %Berkeley County60.9Spartanburg County: 59.6 %Spartanburg County59.6Marlboro County: 59.6 %Marlboro County59.6York County: 59.6 %York County59.6Greenville County: 59.4 %Greenville County59.4Dorchester County: 59.2 %Dorchester County59.2Lexington County: 58.4 %Lexington County58.4Cherokee County: 58.3 %Cherokee County58.3Anderson County: 58.1 %Anderson County58.1Laurens County: 58 %Laurens County58Chester County: 57.7 %Chester County57.7Sumter County: 57.2 %Sumter County57.2Florence County: 57.1 %Florence County57.1Greenwood County: 57 %Greenwood County57Lee County: 57 %Lee County57Hampton County: 56.9 %Hampton County56.9Orangeburg County: 56.9 %Orangeburg County56.9Kershaw County: 56.9 %Kershaw County56.9Chesterfield County: 56.8 %Chesterfield County56.8Bamberg County: 56.6 %Bamberg County56.6Allendale County: 56.4 %Allendale County56.4Newberry County: 56.1 %Newberry County56.1Union County: 56 %Union County56Williamsburg County: 56 %Williamsburg County56Aiken County: 55.9 %Aiken County55.9Darlington County: 55.8 %Darlington County55.8Abbeville County: 55.7 %Abbeville County55.7Dillon County: 55.3 %Dillon County55.3Lancaster County: 55.2 %Lancaster County55.2Barnwell County: 55 %Barnwell County55Jasper County: 54.9 %Jasper County54.9Oconee County: 54.9 %Oconee County54.9Colleton County: 54.8 %Colleton County54.8Calhoun County: 54.4 %Calhoun County54.4Saluda County: 54.2 %Saluda County54.2Marion County: 54.1 %Marion County54.1Clarendon County: 54.1 %Clarendon County54.1Horry County: 53.9 %Horry County53.9Fairfield County: 53.8 %Fairfield County53.8Beaufort County: 52.9 %Beaufort County52.9Georgetown County: 50.2 %Georgetown County50.2McCormick County: 44.9 %McCormick County44.9Richland County: 63.6 %Richland County63.6Pickens County: 62.8 %Pickens County62.8Charleston County: 61.8 %Charleston County61.8Edgefield County: 61.1 %Edgefield County61.1Berkeley County: 60.9 %Berkeley County60.9Spartanburg County: 59.6 %Spartanburg County59.6Marlboro County: 59.6 %Marlboro County59.6York County: 59.6 %York County59.6Greenville County: 59.4 %Greenville County59.4Dorchester County: 59.2 %Dorchester County59.2Lexington County: 58.4 %Lexington County58.4Cherokee County: 58.3 %Cherokee County58.3Anderson County: 58.1 %Anderson County58.1Laurens County: 58 %Laurens County58Chester County: 57.7 %Chester County57.7Sumter County: 57.2 %Sumter County57.2Florence County: 57.1 %Florence County57.1Greenwood County: 57 %Greenwood County57Lee County: 57 %Lee County57Hampton County: 56.9 %Hampton County56.9Orangeburg County: 56.9 %Orangeburg County56.9Kershaw County: 56.9 %Kershaw County56.9Chesterfield County: 56.8 %Chesterfield County56.8Bamberg County: 56.6 %Bamberg County56.6Allendale County: 56.4 %Allendale County56.4Newberry County: 56.1 %Newberry County56.1Union County: 56 %Union County56Williamsburg County: 56 %Williamsburg County56Aiken County: 55.9 %Aiken County55.9Darlington County: 55.8 %Darlington County55.8Abbeville County: 55.7 %Abbeville County55.7Dillon County: 55.3 %Dillon County55.3Lancaster County: 55.2 %Lancaster County55.2Barnwell County: 55 %Barnwell County55Jasper County: 54.9 %Jasper County54.9Oconee County: 54.9 %Oconee County54.9Colleton County: 54.8 %Colleton County54.8Calhoun County: 54.4 %Calhoun County54.4Saluda County: 54.2 %Saluda County54.2Marion County: 54.1 %Marion County54.1Clarendon County: 54.1 %Clarendon County54.1Horry County: 53.9 %Horry County53.9Fairfield County: 53.8 %Fairfield County53.8Beaufort County: 52.9 %Beaufort County52.9Georgetown County: 50.2 %Georgetown County50.2McCormick County: 44.9 %McCormick County44.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2025 (%)Change on 2024
1Richland County63.6-0.1 pts
2Pickens County62.8-0.3 pts
3Charleston County61.8-0.2 pts
4Edgefield County61.1-0.7 pts
5Berkeley County60.9+0.1 pts
6Spartanburg County59.60 pts
7Marlboro County59.6-0.6 pts
8York County59.6-0.2 pts
9Greenville County59.4-0.1 pts
10Dorchester County59.2-0.2 pts
11Lexington County58.4+0.1 pts
12Cherokee County58.3-0.2 pts
13Anderson County58.1-0.1 pts
14Laurens County58+0.1 pts
15Chester County57.70 pts
16Sumter County57.2-0.3 pts
17Florence County57.1-0.1 pts
18Greenwood County57-0.1 pts
19Lee County57-0.7 pts
20Hampton County56.9-0.3 pts
21Orangeburg County56.9-0 pts
22Kershaw County56.9-0 pts
23Chesterfield County56.8-0.2 pts
24Bamberg County56.6-0.2 pts
25Allendale County56.4-1.2 pts
26Newberry County56.1-0.1 pts
27Union County56+0.1 pts
28Williamsburg County56-0.4 pts
29Aiken County55.9-0.3 pts
30Darlington County55.8-0.1 pts
31Abbeville County55.7-0.2 pts
32Dillon County55.3-0.3 pts
33Lancaster County55.2-0.1 pts
34Barnwell County55-0.5 pts
35Jasper County54.9-0.4 pts
36Oconee County54.9-0.2 pts
37Colleton County54.8-0.3 pts
38Calhoun County54.4-0.3 pts
39Saluda County54.2-0.2 pts
40Marion County54.1-0.4 pts
41Clarendon County54.1-0.4 pts
42Horry County53.9-0.5 pts
43Fairfield County53.8-0.8 pts
44Beaufort County52.9-0.2 pts
45Georgetown County50.2-0.6 pts
46McCormick County44.9-1.4 pts

Other periods

About this ranking

Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

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. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. 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). Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in South Carolina by population aged 18 to 64, 2025) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in South Carolina by population aged 18 to 64, 2025. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-18-64/south-carolina-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in South Carolina by population aged 18 to 64, 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-18-64/south-carolina-counties.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in South Carolina by population aged 18 to 64, 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/south-carolina-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2025,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in South Carolina by population aged 18 to 64, 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/population-18-64/south-carolina-counties. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in South Carolina by population aged 18 to 64, 2025
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/population-18-64/south-carolina-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/south-carolina-counties.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest population aged 18 to 64?

Richland County, with 63.6% in 2025, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

McCormick County, with 44.9% in 2025.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population aged 18 to 64: other rankings

Counties in South Carolina: more rankings