South Carolina Population By County in 2018

Updated on December 2, 2021.

According to the US Census Bureau population estimates, there were 5,091,702 people living in South Carolina in 2018. Greenville County was the most populated county with 515,572 residents, followed by Richland County with 415,159 residents, and Charleston County with 406,959 residents. Allendale County with a population of 8,906 was the least populated county in South Carolina in 2018.

Use the map below to interactively explore the population of each county in South Carolina in 2018. The data can also be explored further by sorting and filtering with the table below.

Hover/Click on the counties to see the values.
South Carolina Population By County (2018)
See also Population estimate for other years:
Table of South Carolina Population By County in 2018
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County Population % of State Population
Abbeville 24,637 0.48%
Aiken 169,703 3.33%
Allendale 8,906 0.18%
Anderson 200,209 3.93%
Bamberg 14,288 0.28%
Barnwell 21,150 0.42%
Beaufort 189,563 3.72%
Berkeley 221,841 4.36%
Calhoun 14,530 0.28%
Charleston 406,959 7.99%
Cherokee 57,198 1.12%
Chester 32,281 0.63%
Chesterfield 45,807 0.90%
Clarendon 33,772 0.66%
Colleton 37,731 0.74%
Darlington 66,793 1.31%
Dillon 30,509 0.60%
Dorchester 161,340 3.17%
Edgefield 27,151 0.53%
Fairfield 22,392 0.44%
Florence 138,294 2.72%
Georgetown 62,462 1.23%
Greenville 515,572 10.13%
Greenwood 70,633 1.39%
Hampton 19,416 0.38%
Horry 344,680 6.77%
Jasper 29,228 0.57%
Kershaw 65,856 1.29%
Lancaster 95,213 1.87%
Laurens 66,855 1.31%
Lee 17,269 0.34%
Lexington 294,766 5.79%
McCormick 9,417 0.19%
Marion 30,989 0.61%
Marlboro 26,413 0.52%
Newberry 38,460 0.76%
Oconee 78,215 1.54%
Orangeburg 87,106 1.71%
Pickens 125,176 2.46%
Richland 415,159 8.15%
Saluda 20,333 0.40%
Spartanburg 314,490 6.18%
Sumter 106,518 2.09%
Union 27,327 0.54%
Williamsburg 30,907 0.61%
York 274,188 5.39%