# Counties in South Carolina by median age on 1 July (US county estimates), 2025

All 46 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `median_age_pep`
- Unit: years
- Definition: Age that divides the resident population of a US county into two halves of equal size on 1 July, from Census Bureau population estimates calculated by single year of age.
- Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage (https://www.census.gov/programs-surveys/popest/data/data-sets.html)
- Publisher page: https://invokely.ai/en/publishers/us-census-bureau
- Retrieved: 2026-10-12
- Citation: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/median-age-july-1-us-counties/south-carolina-counties

| Rank | Place | years |
|---:|---|---:|
| 1 | McCormick County | 62.8 |
| 2 | Georgetown County | 54.6 |
| 3 | Fairfield County | 51.3 |
| 4 | Horry County | 50.9 |
| 5 | Beaufort County | 50.4 |
| 6 | Jasper County | 48.9 |
| 7 | Calhoun County | 48.6 |
| 8 | Oconee County | 48.1 |
| 9 | Allendale County | 47.8 |
| 10 | Clarendon County | 47.7 |
| 11 | Williamsburg County | 46.8 |
| 12 | Lee County | 45.8 |
| 13 | Union County | 45.3 |
| 14 | Marion County | 45.1 |
| 15 | Abbeville County | 44.8 |
| 16 | Saluda County | 44.5 |
| 17 | Bamberg County | 44.3 |
| 18 | Colleton County | 43.9 |
| 19 | Edgefield County | 43.6 |
| 20 | Newberry County | 43.4 |
| 21 | Chester County | 43 |
| 22 | Hampton County | 42.9 |
| 23 | Lancaster County | 42.5 |
| 23 | Marlboro County | 42.5 |
| 25 | Aiken County | 42.3 |
| 25 | Orangeburg County | 42.3 |
| 27 | Barnwell County | 42 |
| 28 | Darlington County | 41.9 |
| 29 | Chesterfield County | 41.6 |
| 29 | Laurens County | 41.6 |
| 31 | Greenwood County | 41.4 |
| 32 | Kershaw County | 41.3 |
| 33 | Anderson County | 40.8 |
| 34 | Florence County | 40.6 |
| 35 | Cherokee County | 40.4 |
| 35 | Dillon County | 40.4 |
| 35 | Lexington County | 40.4 |
| 38 | York County | 40.1 |
| 39 | Charleston County | 39.7 |
| 40 | Greenville County | 38.9 |
| 40 | Sumter County | 38.9 |
| 42 | Dorchester County | 38.8 |
| 43 | Spartanburg County | 38.1 |
| 44 | Berkeley County | 37.3 |
| 45 | Richland County | 36.7 |
| 46 | Pickens County | 36.6 |