Columbia County's 2026 population is estimated at 171,476, reflecting a 1.18% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Columbia County is the 15th largest county in Georgia. The 2010 population was 124,951 and has grown 37.23% since 2010.
Data after 2023 is projected based on recent change
Overall: 37.9 years
Female: 39 years
Male: 36.6 years
There are 122,078 adults, (24,555 of whom are seniors) in Columbia County.
Female: 83,038 (51.1%)
Male: 79,396 (48.9%)
The racial composition of Columbia County includes 65.65% White, 19.03% Black or African American, 4.84% Asian, 3.39% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 106,632 | 65.65% |
| Black or African American | 30,909 | 19.03% |
| Two or more races | 11,036 | 6.79% |
| Asian | 7,859 | 4.84% |
| Other race | 5,504 | 3.39% |
| Native American | 434 | 0.27% |
| Native Hawaiian or Pacific Islander | 60 | 0.04% |
Columbia County 's average per capita income is $58,654. Household income levels show a median of $95,592. The poverty rate stands at 7.47%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $131,739 | - |
| Families | $113,982 | $133,683 |
| Households | $95,592 | $119,651 |
| Non Families | $56,561 | $67,236 |
Average Income
Median Household Income
Poverty Rate
