Population of South Carolina 2021
Population
The United States Census Bureau estimates that the population of South Carolina on July 1, 2018 was 5,084,127. That’s a 9.92 percent increase since the 2010 census.
South Carolina had in the census 2010 4,625,364 residents, of which were 68.4% White, 28.1% African American, 5.3% Hispanic, 1.4% Asian, 0.5% Native American, 0.1% Hawaiians and from other Pacific Islands
Religions
The majority of South Carolina residents are Protestant Christians. The religious affiliations of the population of South Carolina are as follows: Christian: 78% (Protestant 65%, Roman Catholic: 10%, Other Christian: 3%), Follower of other religions 3%, Non-religious: 19%.
Top Counties by Population in South Carolina
| Rank | County Name | Population | Population Density (per km²) |
| 1 | Greenville County | 498,777 | 242.24 |
| 2 | Richland County | 409,560 | 204.88 |
| 3 | Charleston County | 396,495 | 112.74 |
| 4 | Horry County | 322,353 | 99.19 |
| 5 | Spartanburg County | 301,474 | 142.14 |
| 6 | Lexington County | 286,207 | 145.80 |
| 7 | York County | 258,537 | 143.39 |
| 8 | Berkeley County | 210,909 | 66.30 |
| 9 | Anderson County | 196,580 | 100.24 |
| 10 | Beaufort County | 183,160 | 122.76 |
| 11 | Aiken County | 167,469 | 59.87 |
| 12 | Dorchester County | 153,784 | 102.93 |
| 13 | Florence County | 138,753 | 66.64 |
| 14 | Pickens County | 122,874 | 92.67 |
| 15 | Sumter County | 107,407 | 60.82 |
| 16 | Lancaster County | 89,605 | 62.36 |
| 17 | Orangeburg County | 87,914 | 30.09 |
| 18 | Oconee County | 76,366 | 43.74 |
| 19 | Greenwood County | 70,144 | 58.50 |
| 20 | Darlington County | 67,245 | 45.78 |
| 21 | Laurens County | 66,788 | 35.62 |
| 22 | Kershaw County | 64,108 | 33.44 |
| 23 | Georgetown County | 61,410 | 29.15 |
| 24 | Cherokee County | 56,657 | 55.11 |
| 25 | Chesterfield County | 46,024 | 22.04 |
| 26 | Newberry County | 38,090 | 22.73 |
| 27 | Colleton County | 37,934 | 12.93 |
| 28 | Clarendon County | 33,962 | 18.84 |
| 29 | Chester County | 32,192 | 21.21 |
| 30 | Williamsburg County | 31,966 | 13.17 |
| 31 | Marion County | 31,737 | 24.81 |
| 32 | Dillon County | 30,869 | 29.29 |
| 33 | Jasper County | 28,476 | 15.71 |
| 34 | Union County | 27,684 | 20.72 |
| 35 | Marlboro County | 26,956 | 21.46 |
| 36 | Edgefield County | 26,369 | 20.08 |
| 37 | Abbeville County | 24,883 | 18.81 |
| 38 | Fairfield County | 22,664 | 12.32 |
| 39 | Barnwell County | 21,494 | 14.90 |
| 40 | Saluda County | 20,208 | 16.88 |
| 41 | Hampton County | 19,933 | 13.67 |
| 42 | Lee County | 17,646 | 16.58 |
| 43 | Calhoun County | 14,807 | 14.59 |
| 44 | Bamberg County | 14,445 | 14.12 |
| 45 | McCormick County | 9,654 | 9.46 |
| 46 | Allendale County | 9,056 | 8.46 |