South Carolina Citizen Population By County in 2010 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2010, the citizen population for South Carolina was 4,365,275 and represented 96.76% of the total South Carolina population.

Among all South Carolina counties, Greenville had the highest citizen population (412.47K), followed by Richland (360.00K), and Charleston (329.54K).

In terms of percentages, Union had the highest percentage of its population being citizens (99.81%), followed by Fairfield (99.79%), and Chester (99.34%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

You can see similar information for other states and by state for the United States.

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South Carolina Citizen Population By County in 2010
South Carolina Citizen Population By County in 2010
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County Citizen Population % of County Population
Greenville 412465 94.51
Richland 359995 96.62
Charleston 329540 96.23
Spartanburg 267020 95.99
Horry 246415 95.41
Lexington 243915 96.58
York 209075 97.28
Anderson 180390 98.20
Berkeley 164075 96.58
Aiken 152860 97.57
Beaufort 144975 93.20
Florence 132585 98.29
Dorchester 126415 97.53
Pickens 114315 97.02
Sumter 104600 98.12
Orangeburg 91160 98.58
Oconee 71515 97.92
Lancaster 70560 97.59
Darlington 67810 98.85
Greenwood 66365 96.34
Laurens 65550 97.80
Kershaw 59035 98.12
Georgetown 59015 97.98
Cherokee 53865 98.24
Chesterfield 45185 98.05
Colleton 38040 97.95
Newberry 35500 95.44
Williamsburg 34760 99.33
Clarendon 34235 98.89
Chester 33025 99.34
Marion 32930 98.09
Dillon 31210 98.56
Union 29035 99.81
Marlboro 28760 98.80
Edgefield 25920 97.15
Abbeville 25285 98.60
Fairfield 23990 99.79
Barnwell 22535 99.06
Jasper 21540 91.14
Hampton 20655 97.54
Lee 19380 98.80
Saluda 17995 91.98
Bamberg 16010 99.20
Calhoun 15045 98.92
Allendale 10590 99.07
McCormick 10130 99.27