South Carolina Citizen Voting-age Population By County in 2021 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the citizen voting-age population for South Carolina was 3,836,605 and represented 75.54% of the total South Carolina population.

Among all South Carolina counties, Greenville had the highest citizen voting-age population (375.63K), followed by Richland (314.14K), and Charleston (313.27K).

In terms of percentages, McCormick had the highest percentage of its population being citizens of voting-age (87.95%), followed by Fairfield (80.91%), and Georgetown (80.33%).

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

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

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South Carolina Citizen Voting-age Population By County in 2021
South Carolina Citizen Voting-age Population By County in 2021
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County Citizen Voting-age Population % of County Population
Greenville 375630 72.35
Richland 314140 75.75
Charleston 313275 77.36
Horry 272265 78.95
Spartanburg 236945 73.39
Lexington 216320 74.15
York 201530 72.87
Berkeley 165780 73.74
Anderson 152520 75.42
Beaufort 144255 77.55
Aiken 128250 76.32
Dorchester 116260 72.58
Florence 102680 74.80
Pickens 102205 78.85
Sumter 78855 74.72
Lancaster 71785 75.84
Orangeburg 65800 77.49
Oconee 61140 78.46
Greenwood 52105 75.14
Laurens 51000 75.95
Georgetown 50600 80.33
Darlington 48905 77.10
Kershaw 48680 74.90
Cherokee 42435 75.50
Chesterfield 33235 76.13
Colleton 29325 76.13
Newberry 28225 74.59
Clarendon 25080 79.33
Chester 24830 76.93
Williamsburg 24295 77.67
Marion 22560 76.26
Union 21295 77.99
Marlboro 21205 78.80
Dillon 21070 73.86
Jasper 20840 73.47
Edgefield 20480 78.95
Abbeville 19270 79.06
Fairfield 17140 80.91
Barnwell 15685 75.41
Hampton 14655 76.23
Saluda 13850 72.86
Lee 13325 79.65
Calhoun 11360 80.00
Bamberg 10525 77.82
McCormick 8430 87.95
Allendale 6555 78.93