DeKalb County, Georgia Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 4th-largest in Georgia
The population of DeKalb County, Georgia is 762,105 as of the 2023 American Community Survey, making it the 4th-largest county in Georgia. The median household income is $77,683, the median home value is $331,400, and the median age is 36.3.
The population of DeKalb County has grown 11.2% since 2010 (692,536 → 770,307), a +0.76% annualized rate.
762,105
Population
+0.76%
Annual growth
2847
People / sq mi
$77,683
Median Income
$331,400
Median Home Value
DeKalb County covers 268 sq mi of land at 2847.2 people per square mile.
About DeKalb County, GA
What distinguishes DeKalb County is density: among the most densely settled of US counties, around 2,847 people per square mile. With 762,105 residents, DeKalb County is a county in Georgia. It is the #4-largest of all counties in Georgia nationally.
Households take in a median $77,683, comfortably near the US median of $78,538. Poverty runs at 9.5%, below the national 12.4%. A typical home is worth $331,400, with typical rent around $1,591.
DeKalb County is among the best-educated US counties: 46.7% of adults 25 and older hold a bachelor’s degree, above the national 35.0%. Working from home is common here: 20.0% of workers do so, above the national 14.0%, and the average commute runs about 31 minutes each way.
That density explains much of the rest of the profile in DeKalb County: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
DeKalb County Population History (2010-2024)
The county of DeKalb County had a population of 692,536 in 2010 and 770,307 in 2024, a 11.2% growth over 14 years. The peak was 770,307 in 2024. Average annual growth rate: 0.76%.
770,307
Population (2024)
692,536
Population (2010)
770,307
Peak (2024)
0.76%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 692,536 |
| 2011 | 698,496 |
| 2012 | 710,783 |
| 2013 | 718,026 |
| 2014 | 725,247 |
| 2015 | 734,846 |
| 2016 | 747,299 |
| 2017 | 751,680 |
| 2018 | 755,514 |
| 2019 | 759,932 |
| 2020 | 764,630 |
| 2021 | 759,333 |
| 2022 | 764,440 |
| 2023 | 768,047 |
| 2024 | 770,307 |
Race & Ethnicity
| White | 30.1% |
| Black or African American | 51.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.5% |
| Two or More Races | 0.0% |
Age & Sex
36.3
Median Age
52.5%
Female
47.5%
Male
13.3%
Age 65+
Age Distribution
Children (under 15): 19.3% · Seniors (65+): 13.3%
Income & Poverty
| Median household income | $77,683+$3,019 vs state |
| Mean household income | $115,757 |
| Per-capita income | $45,544 |
| Poverty rate | 9.5%-0.4% vs state |
| Unemployment rate | 4.4% |
| Employment-to-population | 63.8% |
Top Industries by Employment
The largest employment sector in DeKalb County is professional & business services, accounting for 22.1% of workers.
How residents commute
4.1%
Drive alone
1.3%
Carpool
62.8%
Public transit
20.0%
Work from home
30.8 min
Avg commute
Housing
$331,400+$58,500 vs state
Median home value
$1,591
Median rent
58.5%
Homeownership rate
328,614
Total housing units
86.6%
Occupied
13.4%
Vacant
41.5%
Renter-occupied
Social & access
87.0%
With health insurance
96.1%
With broadband internet
36.2%
Foreign-born
5.7%
Veterans (18+)
11.8%
With a disability
79.4%
Speak language other than English at home
Education
90.8%
High School+
46.7%
Bachelor's+
Largest cities in Georgia
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County rankings
Common questions about DeKalb County, GA
Frequently Asked Questions
DeKalb County, Georgia has a population of 762,105 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 4th-largest county in Georgia. Population density is 2847 people per square mile.
The population of DeKalb County has grown 11.2% since 2010 (692,536 → 770,307), a +0.76% annualized rate.
The median household income in DeKalb County, Georgia is $77,683, with mean (average) household income of $115,757 and per-capita income of $45,544. 9.5% of residents live below the federal poverty level.
In DeKalb County, the largest racial and ethnic groups are Black or African American (51.5%), White (30.1%), Hispanic or Latino (2.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in DeKalb County, Georgia is 36.3 years. Residents are 52.5% female and 47.5% male.
The median home value in DeKalb County is $331,400 and median monthly rent is $1,591. 58.5% of occupied housing units are owner-occupied. The county has 328,614 total housing units, 13.4% of which are vacant.
The largest employment sector in DeKalb County, Georgia is professional, scientific, and management services, employing 22.1% of workers. The unemployment rate is 4.4%.
Atlanta is among the largest cities associated with DeKalb County, Georgia, with a population of 499,287.
DeKalb County, GA Climate
DeKalb County, GA has an average annual temperature of 16.5°C (62°F) and receives about 1314 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
16.5°C
Avg Temp
1314
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 6° / 42° | 130 mm |
| February | 8° / 46° | 121 mm |
| March | 12° / 54° | 143 mm |
| April | 16° / 61° | 106 mm |
| May | 21° / 69° | 106 mm |
| June | 24° / 76° | 96 mm |
| July | 26° / 79° | 124 mm |
| August | 26° / 78° | 99 mm |
| September | 23° / 73° | 95 mm |
| October | 17° / 62° | 87 mm |
| November | 12° / 53° | 97 mm |
| December | 7° / 45° | 110 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit DeKalb County, GA
The most comfortable months to visit DeKalb County, GA are typically May, September and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 32°C high). The coldest is January (near 1°C low). March is usually the wettest month.
Where to stay near DeKalb County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.