South Carolina 2018 Population By County
Updated on June 22, 2021.

According to the US Census Bureau population estimates, there were 5,084,156 people living in South Carolina in 2018. Greenville County was the most populated county with 514,621 residents, followed by Richland County with 414,202 residents, and Charleston County with 406,222 residents. Allendale County with a population of 8,924 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.

South Carolina 2018 Population By County
See also Population estimate for other years:
Table of South Carolina 2018 Population By County
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County Population % of State Population
Abbeville 24,587 0.48%
Aiken 169,449 3.33%
Allendale 8,924 0.18%
Anderson 200,292 3.94%
Bamberg 14,272 0.28%
Barnwell 21,121 0.42%
Beaufort 188,876 3.72%
Berkeley 221,182 4.35%
Calhoun 14,563 0.29%
Charleston 406,222 7.99%
Cherokee 57,069 1.12%
Chester 32,304 0.64%
Chesterfield 45,881 0.90%
Clarendon 33,742 0.66%
Colleton 37,676 0.74%
Darlington 66,759 1.31%
Dillon 30,612 0.60%
Dorchester 160,718 3.16%
Edgefield 27,132 0.53%
Fairfield 22,376 0.44%
Florence 138,277 2.72%
Georgetown 62,232 1.22%
Greenville 514,621 10.12%
Greenwood 70,597 1.39%
Hampton 19,348 0.38%
Horry 344,105 6.77%
Jasper 29,147 0.57%
Kershaw 65,802 1.29%
Lancaster 95,035 1.87%
Laurens 66,890 1.32%
Lee 17,294 0.34%
Lexington 294,350 5.79%
McCormick 9,408 0.19%
Marion 31,056 0.61%
Marlboro 26,392 0.52%
Newberry 38,443 0.76%
Oconee 78,307 1.54%
Orangeburg 87,013 1.71%
Pickens 125,225 2.46%
Richland 414,202 8.15%
Saluda 20,397 0.40%
Spartanburg 314,137 6.18%
Sumter 106,409 2.09%
Union 27,324 0.54%
Williamsburg 30,606 0.60%
York 273,782 5.39%