Data / Rankings / Population aged 65 and over / Counties in South Carolina

Counties in South Carolina by share of population aged 65 and over

McCormick County had the highest share of population aged 65 and over of 46 counties in 2021, at 37.9%. Richland County had the lowest, at 14.9%. The median was 20.6% and the figure for South Carolina was 19.4%. Source: the U.S. Census Bureau.

Highest37.9McCormick County
Lowest14.9Richland County
Median20.646 counties
South Carolina19.4History

All counties, 2021

CSVChart (SVG)

McCormick CountyMcCormick County: 37.9 %37.9Georgetown CountyGeorgetown County: 30.6 %30.6Beaufort CountyBeaufort County: 28.8 %28.8Horry CountyHorry County: 27.5 %27.5Fairfield CountyFairfield County: 25.4 %25.4Clarendon CountyClarendon County: 25.4 %25.4Calhoun CountyCalhoun County: 25.3 %25.3Oconee CountyOconee County: 25 %25Jasper CountyJasper County: 24.1 %24.1Allendale CountyAllendale County: 23.8 %23.8Bamberg CountyBamberg County: 23.5 %23.5Abbeville CountyAbbeville County: 23.2 %23.2Williamsburg CountyWilliamsburg County: 23 %23Saluda CountySaluda County: 22.8 %22.8Lancaster CountyLancaster County: 22.3 %22.3Colleton CountyColleton County: 22.3 %22.3Marion CountyMarion County: 22.2 %22.2Lee CountyLee County: 22 %22Union CountyUnion County: 21.8 %21.8Newberry CountyNewberry County: 21.6 %21.6Orangeburg CountyOrangeburg County: 21.5 %21.5Aiken CountyAiken County: 21.3 %21.3Hampton CountyHampton County: 20.8 %20.8Darlington CountyDarlington County: 20.5 %20.5Edgefield CountyEdgefield County: 20.2 %20.2Greenwood CountyGreenwood County: 20.1 %20.1Chester CountyChester County: 20 %20Laurens CountyLaurens County: 19.8 %19.8Chesterfield CountyChesterfield County: 19.7 %19.7Kershaw CountyKershaw County: 19.7 %19.7Barnwell CountyBarnwell County: 19.6 %19.6Marlboro CountyMarlboro County: 19.2 %19.2Anderson CountyAnderson County: 19.1 %19.1Florence CountyFlorence County: 18.9 %18.9Dillon CountyDillon County: 18.8 %18.8Cherokee CountyCherokee County: 18.2 %18.2Sumter CountySumter County: 18.2 %18.2Charleston CountyCharleston County: 17.9 %17.9Pickens CountyPickens County: 17.8 %17.8Lexington CountyLexington County: 17.6 %17.6Greenville CountyGreenville County: 17.3 %17.3Spartanburg CountySpartanburg County: 17 %17York CountyYork County: 15.7 %15.7Dorchester CountyDorchester County: 15.6 %15.6Berkeley CountyBerkeley County: 15.1 %15.1Richland CountyRichland County: 14.9 %14.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2021 (%)Change on 2020
1McCormick County37.9-0.2 pts
2Georgetown County30.6+0.8 pts
3Beaufort County28.8+0.4 pts
4Horry County27.5+0.6 pts
5Fairfield County25.4+1 pts
6Clarendon County25.4+0.4 pts
7Calhoun County25.3+0.5 pts
8Oconee County25+0.4 pts
9Jasper County24.1+1.4 pts
10Allendale County23.8+0.9 pts
11Bamberg County23.5+0.5 pts
12Abbeville County23.2+0.4 pts
13Williamsburg County23+0.7 pts
14Saluda County22.8+0.4 pts
15Lancaster County22.3+0.1 pts
16Colleton County22.3+0.3 pts
17Marion County22.2+0.6 pts
18Lee County22+0.7 pts
19Union County21.8+0.5 pts
20Newberry County21.6+0.2 pts
21Orangeburg County21.5+0.5 pts
22Aiken County21.3+0.4 pts
23Hampton County20.8+0.8 pts
24Darlington County20.5+0.2 pts
25Edgefield County20.2+0.1 pts
26Greenwood County20.1+0.5 pts
27Chester County20+0.5 pts
28Laurens County19.8+0.2 pts
29Chesterfield County19.7+0.3 pts
30Kershaw County19.7+0.4 pts
31Barnwell County19.6+0.4 pts
32Marlboro County19.2+0.5 pts
33Anderson County19.1+0.1 pts
34Florence County18.9+0.3 pts
35Dillon County18.8+0.4 pts
36Cherokee County18.2+0.2 pts
37Sumter County18.2+0.5 pts
38Charleston County17.9+0.4 pts
39Pickens County17.8+0.4 pts
40Lexington County17.6+0.3 pts
41Greenville County17.3+0.3 pts
42Spartanburg County17+0.1 pts
43York County15.7+0.4 pts
44Dorchester County15.6+0.4 pts
45Berkeley County15.1+0.4 pts
46Richland County14.9+0.5 pts

Other periods

About this ranking

Residents aged 65 or over as a percentage of total population. Spain: 1 January, INE annual census. United States: 1 July, Census Bureau population estimates. World Bank figures for other countries and the World refer to mid-year.

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 (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/asrh/cc-est2025-agesex-all.csv. Retrieved 2026-10-09.

Use this data in your AI agent

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Rank Counties in South Carolina by share of population aged 65 and over using official data, and cite the source.
rank_places {"indicator":"population_65_plus_share","level":"province","within":"South Carolina","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_65_plus_share&level=province&within=South%20Carolina&limit=10

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Questions

Which county has the highest share of population aged 65 and over?

McCormick County, with 37.9% in 2021, according to the U.S. Census Bureau.

Which county has the lowest share of population aged 65 and over?

Richland County, with 14.9% in 2021.

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 (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. Retrieved 2026-10-09.

Population aged 65 and over: other rankings

Counties in South Carolina: more rankings