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

Counties in South Carolina by population aged 18 to 64

Pickens County had the highest population aged 18 to 64 of 46 counties in 2020, at 64%. McCormick County had the lowest, at 51%. The median was 58% and the figure for South Carolina was 59.2%. Source: the U.S. Census Bureau.

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Highest64Pickens County
Lowest51McCormick County
Median5846 counties
South Carolina59.2History

Map of counties, 2020

Abbeville County: 57.1 %Aiken County: 57.6 %Allendale County: 59.8 %Anderson County: 58.6 %Bamberg County: 57.4 %Barnwell County: 57.9 %Beaufort County: 52.6 %Berkeley County: 61 %Calhoun County: 56.1 %Charleston County: 62.7 %Cherokee County: 59.5 %Chester County: 58.2 %Chesterfield County: 58.2 %Clarendon County: 55.1 %Colleton County: 56.3 %Darlington County: 57.5 %Dillon County: 56.8 %Dorchester County: 59.9 %Edgefield County: 61.2 %Fairfield County: 57.6 %Florence County: 58.2 %Georgetown County: 52.4 %Greenville County: 60.1 %Greenwood County: 58 %Hampton County: 59.2 %Horry County: 55.5 %Jasper County: 57.1 %Kershaw County: 57.5 %Lancaster County: 55.5 %Laurens County: 58.5 %Lee County: 60.9 %Lexington County: 59.3 %McCormick County: 51 %Marion County: 56.4 %Marlboro County: 62 %Newberry County: 57.1 %Oconee County: 56.2 %Orangeburg County: 57.6 %Pickens County: 64 %Richland County: 63.9 %Saluda County: 55.6 %Spartanburg County: 59.9 %Sumter County: 58.9 %Union County: 57.3 %Williamsburg County: 58.1 %York County: 60.2 %
  • Under 56
  • 56 to 57
  • 57 to 58
  • 58 to 59
  • 59 to 60
  • 60 and over
%, 2020. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2020

Pickens County: 64 %Pickens County64Richland County: 63.9 %Richland County63.9Charleston County: 62.7 %Charleston County62.7Marlboro County: 62 %Marlboro County62Edgefield County: 61.2 %Edgefield County61.2Berkeley County: 61 %Berkeley County61Lee County: 60.9 %Lee County60.9York County: 60.2 %York County60.2Greenville County: 60.1 %Greenville County60.1Spartanburg County: 59.9 %Spartanburg County59.9Dorchester County: 59.9 %Dorchester County59.9Allendale County: 59.8 %Allendale County59.8Cherokee County: 59.5 %Cherokee County59.5Lexington County: 59.3 %Lexington County59.3Hampton County: 59.2 %Hampton County59.2Sumter County: 58.9 %Sumter County58.9Anderson County: 58.6 %Anderson County58.6Laurens County: 58.5 %Laurens County58.5Florence County: 58.2 %Florence County58.2Chester County: 58.2 %Chester County58.2Chesterfield County: 58.2 %Chesterfield County58.2Williamsburg County: 58.1 %Williamsburg County58.1Greenwood County: 58 %Greenwood County58Barnwell County: 57.9 %Barnwell County57.9Aiken County: 57.6 %Aiken County57.6Fairfield County: 57.6 %Fairfield County57.6Orangeburg County: 57.6 %Orangeburg County57.6Kershaw County: 57.5 %Kershaw County57.5Darlington County: 57.5 %Darlington County57.5Bamberg County: 57.4 %Bamberg County57.4Union County: 57.3 %Union County57.3Jasper County: 57.1 %Jasper County57.1Newberry County: 57.1 %Newberry County57.1Abbeville County: 57.1 %Abbeville County57.1Dillon County: 56.8 %Dillon County56.8Marion County: 56.4 %Marion County56.4Colleton County: 56.3 %Colleton County56.3Oconee County: 56.2 %Oconee County56.2Calhoun County: 56.1 %Calhoun County56.1Saluda County: 55.6 %Saluda County55.6Horry County: 55.5 %Horry County55.5Lancaster County: 55.5 %Lancaster County55.5Clarendon County: 55.1 %Clarendon County55.1Beaufort County: 52.6 %Beaufort County52.6Georgetown County: 52.4 %Georgetown County52.4McCormick County: 51 %McCormick County51Pickens County: 64 %Pickens County64Richland County: 63.9 %Richland County63.9Charleston County: 62.7 %Charleston County62.7Marlboro County: 62 %Marlboro County62Edgefield County: 61.2 %Edgefield County61.2Berkeley County: 61 %Berkeley County61Lee County: 60.9 %Lee County60.9York County: 60.2 %York County60.2Greenville County: 60.1 %Greenville County60.1Spartanburg County: 59.9 %Spartanburg County59.9Dorchester County: 59.9 %Dorchester County59.9Allendale County: 59.8 %Allendale County59.8Cherokee County: 59.5 %Cherokee County59.5Lexington County: 59.3 %Lexington County59.3Hampton County: 59.2 %Hampton County59.2Sumter County: 58.9 %Sumter County58.9Anderson County: 58.6 %Anderson County58.6Laurens County: 58.5 %Laurens County58.5Florence County: 58.2 %Florence County58.2Chester County: 58.2 %Chester County58.2Chesterfield County: 58.2 %Chesterfield County58.2Williamsburg County: 58.1 %Williamsburg County58.1Greenwood County: 58 %Greenwood County58Barnwell County: 57.9 %Barnwell County57.9Aiken County: 57.6 %Aiken County57.6Fairfield County: 57.6 %Fairfield County57.6Orangeburg County: 57.6 %Orangeburg County57.6Kershaw County: 57.5 %Kershaw County57.5Darlington County: 57.5 %Darlington County57.5Bamberg County: 57.4 %Bamberg County57.4Union County: 57.3 %Union County57.3Jasper County: 57.1 %Jasper County57.1Newberry County: 57.1 %Newberry County57.1Abbeville County: 57.1 %Abbeville County57.1Dillon County: 56.8 %Dillon County56.8Marion County: 56.4 %Marion County56.4Colleton County: 56.3 %Colleton County56.3Oconee County: 56.2 %Oconee County56.2Calhoun County: 56.1 %Calhoun County56.1Saluda County: 55.6 %Saluda County55.6Horry County: 55.5 %Horry County55.5Lancaster County: 55.5 %Lancaster County55.5Clarendon County: 55.1 %Clarendon County55.1Beaufort County: 52.6 %Beaufort County52.6Georgetown County: 52.4 %Georgetown County52.4McCormick County: 51 %McCormick County51
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2020 (%)Change on 2019
1Pickens County64-0.3 pts
2Richland County63.9-0.7 pts
3Charleston County62.7-0.5 pts
4Marlboro County62-0.8 pts
5Edgefield County61.2-0.5 pts
6Berkeley County61-0.4 pts
7Lee County60.9+0.2 pts
8York County60.2-0.3 pts
9Greenville County60.1-0.5 pts
10Spartanburg County59.9-0.3 pts
11Dorchester County59.9-0.3 pts
12Allendale County59.8-1.3 pts
13Cherokee County59.5-0.3 pts
14Lexington County59.3-0.4 pts
15Hampton County59.2-2.4 pts
16Sumter County58.9-0.8 pts
17Anderson County58.6-0.2 pts
18Laurens County58.5-0.5 pts
19Florence County58.2-0.6 pts
20Chester County58.2-0.6 pts
21Chesterfield County58.2-0.6 pts
22Williamsburg County58.1-0.5 pts
23Greenwood County58-0.8 pts
24Barnwell County57.9-0.6 pts
25Aiken County57.6-0.6 pts
26Fairfield County57.6-1 pts
27Orangeburg County57.6-0.9 pts
28Kershaw County57.5-0.6 pts
29Darlington County57.5-0.9 pts
30Bamberg County57.4-0.7 pts
31Union County57.3-0.6 pts
32Jasper County57.1-1.1 pts
33Newberry County57.1-0.8 pts
34Abbeville County57.1-0.4 pts
35Dillon County56.8-1.1 pts
36Marion County56.4-0.9 pts
37Colleton County56.3-0.8 pts
38Oconee County56.2-0.4 pts
39Calhoun County56.1-0.8 pts
40Saluda County55.6-1.1 pts
41Horry County55.5-1 pts
42Lancaster County55.5-0.5 pts
43Clarendon County55.1-1.1 pts
44Beaufort County52.6-0.5 pts
45Georgetown County52.4-0.7 pts
46McCormick County51-1.1 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, 2020) [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, 2020. 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?period=2020. 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, 2020. 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?period=2020.

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, 2020 [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?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2020,
  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, 2020}},
  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?period=2020. 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, 2020
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?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/south-carolina-counties?period=2020.
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?

Pickens County, with 64% in 2020, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

McCormick County, with 51% 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, 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