Greenville County's 2026 population is estimated at 592,843, reflecting a 1.9% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Greenville County is the largest county in South Carolina. The 2010 population was 452,688 and has grown 30.96% since 2010.
Data after 2023 is projected based on recent change
Overall: 38.4 years
Female: 39.7 years
Male: 37.2 years
There are 422,724 adults, (91,684 of whom are seniors) in Greenville County.
Female: 281,526 (51.4%)
Male: 266,640 (48.6%)
The racial composition of Greenville County includes 66.8% White, 15.69% Black or African American, 4.12% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 366,157 | 66.8% |
| Black or African American | 85,988 | 15.69% |
| Two or more races | 55,785 | 10.18% |
| Other race | 22,602 | 4.12% |
| Asian | 13,813 | 2.52% |
| Native American | 3,377 | 0.62% |
| Native Hawaiian or Pacific Islander | 444 | 0.08% |
Greenville County 's average per capita income is $51,677. Household income levels show a median of $76,932. The poverty rate stands at 10.83%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $113,673 | $146,221 |
| Families | $96,425 | $126,663 |
| Households | $76,932 | $106,098 |
| Non Families | $47,088 | $63,277 |
Average Income
Median Household Income
Poverty Rate