Lancaster County's 2026 population is estimated at 117,364, reflecting a 2.49% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Lancaster County is the 15th largest county in South Carolina. The 2010 population was 76,976 and has grown 52.47% since 2010.
Data after 2023 is projected based on recent change
Overall: 42.5 years
Female: 44.2 years
Male: 40.8 years
There are 81,952 adults, (22,735 of whom are seniors) in Lancaster County.
Female: 53,227 (50.9%)
Male: 51,248 (49.1%)
The racial composition of Lancaster County includes 68.74% White, 19.29% Black or African American, and smaller percentages for Asian, other race, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 71,819 | 68.74% |
| Black or African American | 20,156 | 19.29% |
| Two or more races | 7,271 | 6.96% |
| Asian | 2,636 | 2.52% |
| Other race | 2,480 | 2.37% |
| Native American | 113 | 0.11% |
Lancaster County 's average per capita income is $52,755. Household income levels show a median of $78,869. The poverty rate stands at 11.42%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $111,974 | $136,549 |
| Families | $100,505 | $122,892 |
| Households | $78,869 | $106,641 |
| Non Families | $43,597 | $65,386 |
Average Income
Median Household Income
Poverty Rate