Rank |
County |
Population (2012) |
1 |
Greenville County, South Carolina
|
467,605
|
2 |
Richland County, South Carolina
|
393,830
|
3 |
Charleston County, South Carolina
|
365,162
|
4 |
Spartanburg County, South Carolina
|
288,745
|
5 |
Horry County, South Carolina
|
282,285
|
6 |
Lexington County, South Carolina
|
270,406
|
7 |
York County, South Carolina
|
234,635
|
8 |
Berkeley County, South Carolina
|
189,781
|
9 |
Anderson County, South Carolina
|
189,355
|
10 |
Beaufort County, South Carolina
|
168,049
|
11 |
Aiken County, South Carolina
|
162,812
|
12 |
Dorchester County, South Carolina
|
142,496
|
13 |
Florence County, South Carolina
|
137,948
|
14 |
Pickens County, South Carolina
|
119,670
|
15 |
Sumter County, South Carolina
|
108,052
|
16 |
Orangeburg County, South Carolina
|
91,476
|
17 |
Lancaster County, South Carolina
|
79,089
|
18 |
Oconee County, South Carolina
|
74,627
|
19 |
Greenwood County, South Carolina
|
69,756
|
20 |
Darlington County, South Carolina
|
68,139
|
21 |
Laurens County, South Carolina
|
66,223
|
22 |
Kershaw County, South Carolina
|
62,343
|
23 |
Georgetown County, South Carolina
|
60,189
|
24 |
Cherokee County, South Carolina
|
55,662
|
25 |
Chesterfield County, South Carolina
|
46,103
|
26 |
Colleton County, South Carolina
|
38,153
|
27 |
Newberry County, South Carolina
|
37,576
|
28 |
Clarendon County, South Carolina
|
34,357
|
29 |
Williamsburg County, South Carolina
|
33,620
|
30 |
Chester County, South Carolina
|
32,546
|
31 |
Marion County, South Carolina
|
32,457
|
32 |
Dillon County, South Carolina
|
31,446
|
33 |
Union County, South Carolina
|
28,252
|
34 |
Marlboro County, South Carolina
|
28,145
|
35 |
Edgefield County, South Carolina
|
26,347
|
36 |
Jasper County, South Carolina
|
25,833
|
37 |
Abbeville County, South Carolina
|
25,101
|
38 |
Fairfield County, South Carolina
|
23,363
|
39 |
Barnwell County, South Carolina
|
22,212
|
40 |
Hampton County, South Carolina
|
20,726
|
41 |
Saluda County, South Carolina
|
19,893
|
42 |
Lee County, South Carolina
|
18,654
|
43 |
Bamberg County, South Carolina
|
15,763
|
44 |
Calhoun County, South Carolina
|
14,910
|
45 |
Allendale County, South Carolina
|
9,988
|
46 |
McCormick County, South Carolina
|
9,943
|