South Carolina Citizen Voting-age Population By County in 2020 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2020, the citizen voting-age population for South Carolina was 3,849,680 and represented 75.61% of the total South Carolina population.

Among all South Carolina counties, Greenville had the highest citizen voting-age population (374.01K), followed by Charleston (315.64K), and Richland (314.27K).

In terms of percentages, McCormick had the highest percentage of its population being citizens of voting-age (87.68%), followed by Fairfield (80.65%), and Georgetown (80.36%).

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 2020
South Carolina Citizen Voting-age Population By County in 2020
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County Citizen Voting-age Population % of County Population
Greenville 374005 72.46
Charleston 315640 77.45
Richland 314265 75.79
Horry 270875 78.70
Spartanburg 230890 73.58
Lexington 218545 74.07
York 199415 72.81
Berkeley 163865 73.78
Anderson 151560 75.71
Beaufort 146680 77.31
Aiken 129540 76.22
Dorchester 117660 72.94
Florence 103655 74.99
Pickens 99210 79.13
Sumter 79940 74.94
Lancaster 72095 75.59
Orangeburg 67380 77.49
Oconee 61500 78.53
Greenwood 53020 75.03
Darlington 51430 76.92
Laurens 51220 76.46
Kershaw 49970 75.80
Georgetown 49945 80.36
Cherokee 43035 75.36
Chesterfield 34910 76.17
Colleton 28695 76.27
Newberry 28625 74.68
Clarendon 26935 79.54
Chester 24900 77.19
Williamsburg 24045 78.04
Marion 23515 75.97
Dillon 22665 74.37
Jasper 21590 73.04
Union 21395 78.30
Edgefield 21375 79.11
Marlboro 20840 79.01
Abbeville 19445 79.11
Fairfield 18070 80.65
Barnwell 15935 75.27
Saluda 14770 72.79
Hampton 14765 76.80
Lee 13740 80.14
Calhoun 11665 79.84
Bamberg 11160 78.40
McCormick 8325 87.68
Allendale 6980 79.41