Census ACS 2023 · 46 counties
Largest Counties in South Carolina
South Carolina has 46 counties with Census data available. The largest is Greenville County with a population of 537,575. County-level data is important because counties are the primary unit of local government in most states, responsible for courts, elections, public health, and infrastructure. Population distribution across counties reveals where growth is concentrated and where rural decline may be occurring.
Source: Census ACS 2023 5-Year Estimates
| # | County | Population | Median Income |
|---|---|---|---|
| 1 | York County | 288,559 | $83,060 |
| 2 | Williamsburg County | 30,517 | $43,471 |
| 3 | Union County | 26,990 | $41,200 |
| 4 | Sumter County | 104,853 | $55,990 |
| 5 | Spartanburg County | 338,096 | $64,195 |
| 6 | Saluda County | 18,958 | $52,957 |
| 7 | Richland County | 418,725 | $61,699 |
| 8 | Pickens County | 132,604 | $59,411 |
| 9 | Orangeburg County | 83,531 | $43,214 |
| 10 | Oconee County | 79,566 | $60,193 |
| 11 | Newberry County | 38,121 | $59,670 |
| 12 | McCormick County | 9,701 | $55,344 |
| 13 | Marlboro County | 26,285 | $36,293 |
| 14 | Marion County | 28,900 | $34,501 |
| 15 | Lexington County | 300,370 | $75,014 |
| 16 | Lee County | 16,330 | $44,145 |
| 17 | Laurens County | 67,904 | $55,517 |
| 18 | Lancaster County | 100,905 | $74,751 |
| 19 | Kershaw County | 66,924 | $64,343 |
| 20 | Jasper County | 30,658 | $63,503 |
| 21 | Horry County | 368,937 | $64,623 |
| 22 | Hampton County | 18,555 | $43,059 |
| 23 | Greenwood County | 69,329 | $50,635 |
| 24 | Greenville County | 537,575 | $74,624 |
| 25 | Georgetown County | 64,200 | $66,734 |
| 26 | Florence County | 136,921 | $56,650 |
| 27 | Fairfield County | 20,741 | $46,972 |
| 28 | Edgefield County | 26,508 | $67,092 |
| 29 | Dorchester County | 164,322 | $76,896 |
| 30 | Dillon County | 28,031 | $44,038 |
| 31 | Darlington County | 62,754 | $47,419 |
| 32 | Colleton County | 38,623 | $48,779 |
| 33 | Clarendon County | 31,037 | $48,887 |
| 34 | Chesterfield County | 43,575 | $47,620 |
| 35 | Chester County | 32,177 | $51,216 |
| 36 | Cherokee County | 56,299 | $49,047 |
| 37 | Charleston County | 414,711 | $84,320 |
| 38 | Calhoun County | 14,150 | $56,690 |
| 39 | Berkeley County | 238,723 | $82,327 |
| 40 | Beaufort County | 192,123 | $84,819 |
| 41 | Barnwell County | 20,565 | $41,800 |
| 42 | Bamberg County | 13,164 | $43,206 |
| 43 | Anderson County | 207,218 | $64,683 |
| 44 | Allendale County | 7,738 | $31,603 |
| 45 | Aiken County | 171,949 | $67,940 |
| 46 | Abbeville County | 24,352 | $52,112 |
More Rankings for South Carolina
Frequently Asked Questions
Greenville County is the #1 ranked county in South Carolina by population, with a value of 537,575 according to Census ACS 2023 data.
South Carolina has 46 counties tracked in Census ACS 2023 data.
All data comes from the American Community Survey (ACS) 2023 5-Year estimates by the US Census Bureau.
Data from the American Community Survey 2023 5-Year estimates. Covers all counties in South Carolina.