DeKalb County's 2026 population is estimated at 774,827, reflecting a 0.29% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). DeKalb County is the 4th largest county in Georgia. The 2010 population was 692,536 and has grown 11.88% since 2010.
Data after 2023 is projected based on recent change
Overall: 36.4 years
Female: 37.6 years
Male: 35.4 years
There are 591,309 adults, (105,276 of whom are seniors) in DeKalb County.
Female: 402,256 (52.6%)
Male: 363,095 (47.4%)
The racial composition of DeKalb County includes 50.75% Black or African American, 28.9% White, 6.19% Asian, 4.26% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| Black or African American | 388,444 | 50.75% |
| White | 221,151 | 28.9% |
| Two or more races | 71,644 | 9.36% |
| Asian | 47,355 | 6.19% |
| Other race | 32,569 | 4.26% |
| Native American | 3,647 | 0.48% |
| Native Hawaiian or Pacific Islander | 541 | 0.07% |
DeKalb County 's average per capita income is $53,316. Household income levels show a median of $80,644. The poverty rate stands at 13.69%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $140,457 | $183,878 |
| Families | $105,080 | $147,743 |
| Households | $80,644 | $119,788 |
| Non Families | $57,546 | $79,014 |
Average Income
Median Household Income
Poverty Rate
