Ranking of South Carolina Counties By Voting-age Population Percentage from Census 2020

Updated on August 22, 2023.

According to the data from the US 2020 Census, as at April 2020, McCormick County had the highest voting-age population percentage in South Carolina (88.62%), followed by Allendale County (83.18%), and Horry County (82.64%).

The chart below shows the top 10 counties with high voting-age population percentage, and the table below shows the ranking of all South Carolina counties based on the percentage of the population that were in the voting-age (18 years and over) group.

You can also see the ranking of counties by population for other states as well as for the whole United States.

Ranking of South Carolina Counties By Voting-age Population Percentage from Census 2020
McCormick
88.62%
Allendale
83.18%
Horry
82.64%
Fairfield
82.62%
Georgetown
82.24%
Lee
82.19%
Pickens
81.48%
Beaufort
81.11%
Edgefield
80.97%
Marlboro
80.94%
Ranking of South Carolina Counties By Voting-age Population Percentage from Census 2020
Rank
County
% of County Voting-age Population
1 McCormick County 88.62
2 Allendale County 83.18
3 Horry County 82.64
4 Fairfield County 82.62
5 Georgetown County 82.24
6 Lee County 82.19
7 Pickens County 81.48
8 Beaufort County 81.11
9 Edgefield County 80.97
10 Marlboro County 80.94
11 Calhoun County 80.91
12 Oconee County 80.88
13 Clarendon County 80.43
14 Williamsburg County 80.35
15 Charleston County 80.32
16 Bamberg County 80.31
17 Jasper County 80.24
18 Abbeville County 79.72
19 Hampton County 79.24
20 Orangeburg County 79.04
21 Colleton County 78.85
22 Newberry County 78.76
23 Aiken County 78.74
24 Richland County 78.69
25 Union County 78.63
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