Decatur County's 2026 population is estimated at 29,925, reflecting a 0.9% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Decatur County is the 66th largest county in Georgia. The 2010 population was 27,815 and has grown 7.59% since 2010.
Data after 2023 is projected based on recent change
Overall: 38.9 years
Female: 40.3 years
Male: 37.2 years
There are 22,134 adults, (4,997 of whom are seniors) in Decatur County.
Female: 15,205 (52.1%)
Male: 13,990 (47.9%)
The racial composition of Decatur County includes 49.21% White, 42.1% Black or African American, and smaller percentages for other race, Native American, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 14,368 | 49.21% |
| Black or African American | 12,291 | 42.1% |
| Two or more races | 968 | 3.32% |
| Other race | 783 | 2.68% |
| Native American | 575 | 1.97% |
| Asian | 210 | 0.72% |
Decatur County 's average per capita income is $42,811. Household income levels show a median of $53,317. The poverty rate stands at 22.04%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $92,938 | - |
| Families | $64,778 | $82,219 |
| Households | $53,317 | $69,600 |
| Non Families | $32,524 | $44,370 |
Average Income
Median Household Income
Poverty Rate