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 2020, at 38.1%. Richland County had the lowest, at 14.5%. The median was 20.2% and the figure for South Carolina was 19.1%. Source: the U.S. Census Bureau.

Highest38.1McCormick County
Lowest14.5Richland County
Median20.246 counties
South Carolina19.1History

All counties, 2020

CSVChart (SVG)

McCormick CountyMcCormick County: 38.1 %38.1Georgetown CountyGeorgetown County: 29.8 %29.8Beaufort CountyBeaufort County: 28.4 %28.4Horry CountyHorry County: 26.9 %26.9Clarendon CountyClarendon County: 25 %25Calhoun CountyCalhoun County: 24.8 %24.8Oconee CountyOconee County: 24.5 %24.5Fairfield CountyFairfield County: 24.5 %24.5Bamberg CountyBamberg County: 23 %23Allendale CountyAllendale County: 22.9 %22.9Abbeville CountyAbbeville County: 22.8 %22.8Jasper CountyJasper County: 22.7 %22.7Saluda CountySaluda County: 22.4 %22.4Lancaster CountyLancaster County: 22.3 %22.3Williamsburg CountyWilliamsburg County: 22.2 %22.2Colleton CountyColleton County: 22 %22Marion CountyMarion County: 21.6 %21.6Newberry CountyNewberry County: 21.3 %21.3Lee CountyLee County: 21.3 %21.3Union CountyUnion County: 21.3 %21.3Orangeburg CountyOrangeburg County: 21 %21Aiken CountyAiken County: 20.9 %20.9Darlington CountyDarlington County: 20.2 %20.2Edgefield CountyEdgefield County: 20.1 %20.1Hampton CountyHampton County: 20 %20Greenwood CountyGreenwood County: 19.7 %19.7Laurens CountyLaurens County: 19.6 %19.6Chesterfield CountyChesterfield County: 19.5 %19.5Chester CountyChester County: 19.5 %19.5Kershaw CountyKershaw County: 19.4 %19.4Barnwell CountyBarnwell County: 19.2 %19.2Anderson CountyAnderson County: 18.9 %18.9Marlboro CountyMarlboro County: 18.7 %18.7Florence CountyFlorence County: 18.6 %18.6Dillon CountyDillon County: 18.4 %18.4Cherokee CountyCherokee County: 18 %18Sumter CountySumter County: 17.7 %17.7Charleston CountyCharleston County: 17.5 %17.5Pickens CountyPickens County: 17.5 %17.5Lexington CountyLexington County: 17.3 %17.3Greenville CountyGreenville County: 17 %17Spartanburg CountySpartanburg County: 16.9 %16.9York CountyYork County: 15.4 %15.4Dorchester CountyDorchester County: 15.2 %15.2Berkeley CountyBerkeley County: 14.6 %14.6Richland CountyRichland County: 14.5 %14.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2020 (%)
1McCormick County38.1
2Georgetown County29.8
3Beaufort County28.4
4Horry County26.9
5Clarendon County25
6Calhoun County24.8
7Oconee County24.5
8Fairfield County24.5
9Bamberg County23
10Allendale County22.9
11Abbeville County22.8
12Jasper County22.7
13Saluda County22.4
14Lancaster County22.3
15Williamsburg County22.2
16Colleton County22
17Marion County21.6
18Newberry County21.3
19Lee County21.3
20Union County21.3
21Orangeburg County21
22Aiken County20.9
23Darlington County20.2
24Edgefield County20.1
25Hampton County20
26Greenwood County19.7
27Laurens County19.6
28Chesterfield County19.5
29Chester County19.5
30Kershaw County19.4
31Barnwell County19.2
32Anderson County18.9
33Marlboro County18.7
34Florence County18.6
35Dillon County18.4
36Cherokee County18
37Sumter County17.7
38Charleston County17.5
39Pickens County17.5
40Lexington County17.3
41Greenville County17
42Spartanburg County16.9
43York County15.4
44Dorchester County15.2
45Berkeley County14.6
46Richland County14.5

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

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

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

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

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

McCormick County, with 38.1% in 2020, according to the U.S. Census Bureau.

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

Richland County, with 14.5% 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 (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