Aiken County's 2026 population is estimated at 184,667, reflecting a 1.74% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Aiken County is the 11th largest county in South Carolina. The 2010 population was 160,558 and has grown 15.02% since 2010.
Overall: 42 years
Female: 43.3 years
Male: 40.8 years
There are 136,781 adults, (36,156 of whom are seniors) in Aiken County.
Female: 89,791 (51.6%)
Male: 84,369 (48.4%)
The racial composition of Aiken County includes 64.96% White, 23.88% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 113,129 | 64.96% |
| Black or African American | 41,593 | 23.88% |
| Two or more races | 13,981 | 8.03% |
| Other race | 3,462 | 1.99% |
| Asian | 1,679 | 0.96% |
| Native American | 265 | 0.15% |
| Native Hawaiian or Pacific Islander | 51 | 0.03% |
Aiken County 's average per capita income is $47,026. Household income levels show a median of $70,609. The poverty rate stands at 14.34%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $104,406 | $127,604 |
| Families | $86,287 | $108,758 |
| Households | $70,609 | $93,371 |
| Non Families | $39,278 | $57,826 |
Average Income
Median Household Income
Poverty Rate