How many people live in DeKalb County, GA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 770,300 people living in DeKalb County, GA. That makes DeKalb County the fourth-most populous county in Georgia. It is home to 6.8% of people living in the state.
770K
population of DeKalb County, GA (2024)
6.8%
County share of the Georgia population (2024)
About 770,300 people lived in DeKalb County, GA in 2024.
Population estimates, 2000–2024
What are DeKalb County, GA’s age demographics?
About 113,400 DeKalb County, GA residents are aged 65 and older in 2024. That represents 14.7% of its population. For comparison, the age group represents 15.8% of Georgia’s population and 18% in the US overall.
Another 171,000 DeKalb County, GA residents, or 22.2% of the population, were children under 18. For comparison, the age group represents 22.8% of Georgia’s population and 21.6% in the US overall.
A higher share of DeKalb County, GA's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are DeKalb County, GA’s racial and ethnic demographics?
Non-Hispanic Black or African American residents make up 51.6% of the DeKalb County, GA population, higher than the national share of 12.6%. DeKalb County, GA also has a larger share of people identifying as non-Hispanic Asian (6.7%) than the US overall (6.5%).
In contrast, DeKalb County’s non-Hispanic white population accounts for 28.5%, below the 57.5% nationwide, and the Hispanic population makes up 10.8% of the county, compared with 20% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
DeKalb County, GA has a higher share of a non-Hispanic Black or African American population than Georgia as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in DeKalb County, GA is Stonecrest with about 61,000 residents in 2024.
Cities and towns in DeKalb County, GA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Stonecrest | 61,015 |
| 2. | Brookhaven | 59,370 |
| 3. | Dunwoody | 51,795 |
| 4. | Atlanta (pt.) | 42,167 |
| 5. | Tucker | 37,224 |
| 6. | Chamblee | 32,321 |
| 7. | Decatur | 24,482 |
| 8. | Clarkston | 14,416 |
| 9. | Doraville (pt.) | 12,430 |
| 10. | Stone Mountain | 6,552 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
