South Carolina Counties by Population (2026)
2026 Pop.
50K
100K
150K
200K
250K
300K
350K
400K
450K
500K
550K
Top 5 Most Populous Counties
592,380
440,795
439,143
439,112
391,780
| County | 2026 Pop. ↓ | Area (mi²) | Density (/mi²) | Change (2020) |
|---|---|---|---|---|
| Greenville County | 592,380 | 786 | 754 | 12.35% |
| Horry County | 440,795 | 1.1K | 389 | 24.6% |
| Charleston County | 439,143 | 918 | 478 | 7.13% |
| Richland County | 439,112 | 757 | 580 | 5.62% |
| Spartanburg County | 391,780 | 808 | 485 | 18.95% |
| Lexington County | 321,092 | 699 | 459 | 8.85% |
| York County | 311,013 | 681 | 457 | 9.58% |
| Berkeley County | 283,340 | 1.1K | 257 | 22.4% |
| Anderson County | 222,470 | 714 | 312 | 8.96% |
| Beaufort County | 205,860 | 576 | 357 | 9.61% |
| Aiken County | 184,667 | 1.1K | 172 | 9.16% |
| Dorchester County | 181,955 | 568 | 320 | 12.28% |
| Pickens County | 140,537 | 497 | 283 | 6.71% |
| Florence County | 138,691 | 801 | 173 | 1.36% |
| Lancaster County | 117,293 | 549 | 214 | 21.44% |
| Sumter County | 105,346 | 665 | 158 | -0.06% |
| Oconee County | 84,984 | 627 | 136 | 7.86% |
| Orangeburg County | 83,183 | 1.1K | 75 | -0.93% |
| Kershaw County | 74,420 | 727 | 102 | 13.46% |
| Laurens County | 73,188 | 713 | 103 | 8.22% |
| Greenwood County | 70,578 | 456 | 155 | 1.8% |
| Georgetown County | 65,692 | 814 | 81 | 3.44% |
| Darlington County | 63,093 | 561 | 112 | 0.38% |
| Cherokee County | 58,676 | 393 | 149 | 4.36% |
| Chesterfield County | 45,040 | 799 | 56 | 4.12% |
| Jasper County | 40,728 | 655 | 62 | 39.68% |
| Newberry County | 39,801 | 630 | 63 | 5.47% |
| Colleton County | 39,335 | 1.1K | 37 | 2.07% |
| Chester County | 33,455 | 581 | 58 | 3.62% |
| Clarendon County | 31,033 | 607 | 51 | 0.65% |
| Edgefield County | 30,369 | 501 | 61 | 18.29% |
| Williamsburg County | 29,523 | 934 | 32 | -4.5% |
| Marion County | 27,980 | 489 | 57 | -3.81% |
| Dillon County | 27,335 | 405 | 67 | -3.32% |
| Union County | 26,804 | 514 | 52 | -1.36% |
| Marlboro County | 25,432 | 480 | 53 | -4.01% |
| Abbeville County | 24,993 | 491 | 51 | 2.99% |
| Barnwell County | 20,794 | 548 | 38 | 1.04% |
| Fairfield County | 20,202 | 686 | 29 | -3.3% |
| Saluda County | 19,791 | 453 | 44 | 4.64% |
| Hampton County | 18,164 | 560 | 32 | -1.95% |
| Lee County | 15,587 | 410 | 38 | -5.82% |
| Calhoun County | 14,190 | 381 | 37 | 0.56% |
| Bamberg County | 12,756 | 393 | 32 | -3.79% |
| McCormick County | 10,453 | 359 | 29 | 9.78% |
| Allendale County | 7,179 | 408 | 18 | -9.58% |
Sources
- US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
- American Community Survey (2009 - 2013)
- Census QuickFacts
- Historical Populations of States and Counties (1790 - 1990)