Data / Rankings / Population density / Counties in South Carolina

Counties in South Carolina by population density, 2025

Greenville County had the highest population density of 46 counties in 2025, at 286.5 inhabitants per km². Allendale County had the lowest, at 7 inhabitants per km². The median was 30.2 inhabitants per km² and the figure for South Carolina was 71.5 inhabitants per km². Source: the U.S. Census Bureau.

Highest286.5Greenville County
Lowest7Allendale County
Median30.246 counties
South Carolina71.5History

All counties, 2025

CSVChart (SVG)

Greenville CountyGreenville County: 286.5 inhabitants per km²286.5Richland CountyRichland County: 221.8 inhabitants per km²221.8Charleston CountyCharleston County: 183.4 inhabitants per km²183.4Spartanburg CountySpartanburg County: 181.9 inhabitants per km²181.9Lexington CountyLexington County: 175.5 inhabitants per km²175.5York CountyYork County: 174.1 inhabitants per km²174.1Horry CountyHorry County: 145.7 inhabitants per km²145.7Beaufort CountyBeaufort County: 137 inhabitants per km²137Dorchester CountyDorchester County: 121.2 inhabitants per km²121.2Anderson CountyAnderson County: 119 inhabitants per km²119Pickens CountyPickens County: 108.1 inhabitants per km²108.1Berkeley CountyBerkeley County: 96.1 inhabitants per km²96.1Lancaster CountyLancaster County: 80.4 inhabitants per km²80.4Florence CountyFlorence County: 66.8 inhabitants per km²66.8Aiken CountyAiken County: 65.5 inhabitants per km²65.5Sumter CountySumter County: 61 inhabitants per km²61Greenwood CountyGreenwood County: 59.6 inhabitants per km²59.6Cherokee CountyCherokee County: 57.3 inhabitants per km²57.3Oconee CountyOconee County: 51.6 inhabitants per km²51.6Darlington CountyDarlington County: 43.3 inhabitants per km²43.3Laurens CountyLaurens County: 38.9 inhabitants per km²38.9Kershaw CountyKershaw County: 38.9 inhabitants per km²38.9Georgetown CountyGeorgetown County: 31.3 inhabitants per km²31.3Orangeburg CountyOrangeburg County: 29 inhabitants per km²29Dillon CountyDillon County: 26.2 inhabitants per km²26.2Newberry CountyNewberry County: 24.2 inhabitants per km²24.2Edgefield CountyEdgefield County: 23 inhabitants per km²23Jasper CountyJasper County: 22.7 inhabitants per km²22.7Marion CountyMarion County: 22.3 inhabitants per km²22.3Chester CountyChester County: 21.9 inhabitants per km²21.9Chesterfield CountyChesterfield County: 21.6 inhabitants per km²21.6Marlboro CountyMarlboro County: 20.5 inhabitants per km²20.5Union CountyUnion County: 20.1 inhabitants per km²20.1Clarendon CountyClarendon County: 19.7 inhabitants per km²19.7Abbeville CountyAbbeville County: 19.5 inhabitants per km²19.5Saluda CountySaluda County: 16.8 inhabitants per km²16.8Lee CountyLee County: 14.8 inhabitants per km²14.8Barnwell CountyBarnwell County: 14.5 inhabitants per km²14.5Colleton CountyColleton County: 14.4 inhabitants per km²14.4Calhoun CountyCalhoun County: 14.4 inhabitants per km²14.4Bamberg CountyBamberg County: 12.6 inhabitants per km²12.6Hampton CountyHampton County: 12.5 inhabitants per km²12.5Williamsburg CountyWilliamsburg County: 12.3 inhabitants per km²12.3Fairfield CountyFairfield County: 11.4 inhabitants per km²11.4McCormick CountyMcCormick County: 11 inhabitants per km²11Allendale CountyAllendale County: 7 inhabitants per km²7
inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2025
inhabitants per km²		Change on 2024
1Greenville County286.5+1.6%
2Richland County221.8+1%
3Charleston County183.4+0.7%
4Spartanburg County181.9+3%
5Lexington County175.5+1.1%
6York County174.1+1.4%
7Horry County145.7+3.2%
8Beaufort County137+0.7%
9Dorchester County121.2+2%
10Anderson County119+1.2%
11Pickens County108.1+1%
12Berkeley County96.1+3.3%
13Lancaster County80.4+2.7%
14Florence County66.8+0.1%
15Aiken County65.5+1.8%
16Sumter County61+0.3%
17Greenwood County59.6+0.3%
18Cherokee County57.3+0.7%
19Oconee County51.6+1.5%
20Darlington County43.3+0.3%
21Laurens County38.9+1.9%
22Kershaw County38.9+1.7%
23Georgetown County31.3-0.3%
24Orangeburg County290%
25Dillon County26.2-0.4%
26Newberry County24.2+0.6%
27Edgefield County23+1.9%
28Jasper County22.7+6%
29Marion County22.3-0.9%
30Chester County21.9+1.4%
31Chesterfield County21.6+0.7%
32Marlboro County20.5-0.2%
33Union County20.10%
34Clarendon County19.7-0%
35Abbeville County19.5+0.6%
36Saluda County16.8+0.6%
37Lee County14.8-0.9%
38Barnwell County14.5+0.7%
39Colleton County14.4-0.1%
40Calhoun County14.40%
41Bamberg County12.6-0.3%
42Hampton County12.5-0.1%
43Williamsburg County12.3-0.5%
44Fairfield County11.4-0.7%
45McCormick County11+2.4%
46Allendale County7-2.3%

Other periods

About this ranking

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

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 resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

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Questions

Which county has the highest population density?

Greenville County, with 286.5 inhabitants per km² in 2025, according to the U.S. Census Bureau.

Which county has the lowest population density?

Allendale County, with 7 inhabitants per km² 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 resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved 2026-10-09.

Population density: other rankings

Counties in South Carolina: more rankings