Largest Counties in South Carolina

Rank County Population County Seat Established Area (km2) Density
1 Greenville County 498,755 Greenville 1786 2,059 242.23
2 Richland County 409,538 Columbia 1799 1,999 204.87
3 Charleston County 396,473 Charleston 1769 3,517 112.73
4 Horry County 322,331 Conway 1801 3,250 99.18
5 Spartanburg County 301,452 Spartanburg 1785 2,121 142.13
6 Lexington County 286,185 Lexington 1804 1,963 145.79
7 York County 258,515 York 1798 1,803 143.38
8 Berkeley County 210,887 Moncks Corner 1882 3,181 66.3
9 Anderson County 196,558 Anderson 1826 1,961 100.23
10 Beaufort County 183,138 Beaufort 1769 1,492 122.75
11 Aiken County 167,447 Aiken 1871 2,797 59.87
12 Dorchester County 153,762 Saint George 1868 1,494 102.92
13 Florence County 138,731 Florence 1888 2,082 66.63
14 Pickens County 122,852 Pickens 1826 1,326 92.65
15 Sumter County 107,385 Sumter 1798 1,766 60.81
16 Lancaster County 89,583 Lancaster 1798 1,437 62.34
17 Orangeburg County 87,892 Orangeburg 1769 2,922 30.08
18 Oconee County 76,344 Walhalla 1868 1,746 43.73
19 Greenwood County 70,122 Greenwood 1897 1,199 58.48
20 Darlington County 67,223 Darlington 1785 1,469 45.76
21 Laurens County 66,766 Laurens 1785 1,875 35.61
22 Kershaw County 64,086 Camden 1798 1,917 33.43
23 Georgetown County 61,388 Georgetown 1769 2,107 29.14
24 Cherokee County 56,635 Gaffney 1897 1,028 55.09
25 Chesterfield County 46,002 Chesterfield 1798 2,088 22.03
26 Newberry County 38,068 Newberry 1785 1,676 22.71
27 Colleton County 37,912 Walterboro 1800 2,934 12.92
28 Clarendon County 33,940 Manning 1855 1,803 18.82
29 Chester County 32,170 Chester 1785 1,518 21.19
30 Williamsburg County 31,944 Kingstree 1802 2,427 13.16
31 Marion County 31,715 Marion 1800 1,279 24.8
32 Dillon County 30,847 Dillon 1910 1,054 29.27
33 Jasper County 28,454 Ridgeland 1912 1,813 15.69
34 Union County 27,662 Union 1798 1,336 20.71
35 Marlboro County 26,934 Bennettsville 1785 1,256 21.44
36 Edgefield County 26,347 Edgefield 1785 1,313 20.07
37 Abbeville County 24,861 Abbeville 1785 1,323 18.79
38 Fairfield County 22,642 Winnsboro 1785 1,839 12.31
39 Barnwell County 21,472 Barnwell 1798 1,443 14.88
40 Saluda County 20,186 Saluda 1896 1,197 16.86
41 Hampton County 19,911 Hampton 1787 1,458 13.66
42 Lee County 17,624 Bishopville 1902 1,064 16.56
43 Calhoun County 14,785 Saint Matthews 1908 1,015 14.57
44 Bamberg County 14,423 Bamberg 1897 1,023 14.1
45 McCormick County 9,632 McCormick 1914 1,020 9.44
46 Allendale County 9,034 Allendale 1919 1,070 8.44

Largest Counties in South Carolina

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