All counties in South Carolina
| County Name | Population | State | Rank |
|---|
| Greenville County | 451,225 | South Carolina | 1 |
| Richland County | 384,504 | South Carolina | 2 |
| Charleston County | 350,209 | South Carolina | 3 |
| Spartanburg County | 284,307 | South Carolina | 4 |
| Horry County | 269,291 | South Carolina | 5 |
| Lexington County | 262,391 | South Carolina | 6 |
| York County | 226,073 | South Carolina | 7 |
| Anderson County | 187,126 | South Carolina | 8 |
| Berkeley County | 177,843 | South Carolina | 9 |
| Beaufort County | 162,233 | South Carolina | 10 |
| Aiken County | 160,099 | South Carolina | 11 |
| Florence County | 136,885 | South Carolina | 12 |
| Dorchester County | 136,555 | South Carolina | 13 |
| Pickens County | 119,224 | South Carolina | 14 |
| Sumter County | 107,456 | South Carolina | 15 |
| Orangeburg County | 92,501 | South Carolina | 16 |
| Lancaster County | 76,652 | South Carolina | 17 |
| Oconee County | 74,273 | South Carolina | 18 |
| Greenwood County | 69,661 | South Carolina | 19 |
| Darlington County | 68,681 | South Carolina | 20 |
| Laurens County | 66,537 | South Carolina | 21 |
| Kershaw County | 61,697 | South Carolina | 22 |
| Georgetown County | 60,158 | South Carolina | 23 |
| Cherokee County | 55,342 | South Carolina | 24 |
| Chesterfield County | 46,734 | South Carolina | 25 |
| Colleton County | 38,892 | South Carolina | 26 |
| Newberry County | 37,508 | South Carolina | 27 |
| Clarendon County | 34,971 | South Carolina | 28 |
| Williamsburg County | 34,423 | South Carolina | 29 |
| Chester County | 33,140 | South Carolina | 30 |
| Marion County | 33,062 | South Carolina | 31 |
| Dillon County | 32,062 | South Carolina | 32 |
| Union County | 28,961 | South Carolina | 33 |
| Marlboro County | 28,933 | South Carolina | 34 |
| Edgefield County | 26,985 | South Carolina | 35 |
| Abbeville County | 25,417 | South Carolina | 36 |
| Jasper County | 24,777 | South Carolina | 37 |
| Fairfield County | 23,956 | South Carolina | 38 |
| Barnwell County | 22,621 | South Carolina | 39 |
| Hampton County | 21,090 | South Carolina | 40 |
| Saluda County | 19,875 | South Carolina | 41 |
| Lee County | 19,220 | South Carolina | 42 |
| Bamberg County | 15,987 | South Carolina | 43 |
| Calhoun County | 15,175 | South Carolina | 44 |
| Allendale County | 10,419 | South Carolina | 45 |
| Mccormick County | 10,233 | South Carolina | 46 |