US Census Data

Cobb County vs DeKalb County

A side-by-side comparison of Cobb County and DeKalb County: population, income, housing, and more.

Cobb County and DeKalb County are counties in Georgia. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Cobb County has the higher population (769,152 vs 762,105 in DeKalb County). Cobb County has the higher median household income ($98,712 vs $77,683 in DeKalb County). Cobb County has the higher median home value ($373,700 vs $331,400 in DeKalb County).

Population, income & housing

Cobb CountyDeKalb County
Population769,152762,105
Median age37.4 yrs36.3 yrs
Median household income$98,712$77,683
Median home value$373,700$331,400
Median gross rent$1,640$1,591
Housing units311,556328,614
Homeownership rate67.0%58.5%
Bachelor's degree or higher50.4%46.7%
Unemployment rate4.5%6.4%

Trends (ACS 5-year, 2019–2023)

Cobb CountyDeKalb County
Population751,218 → 769,152 (+2.4%)749,323 → 762,105 (+1.7%)
Median household income$77,932 → $98,712 (+26.7%)$62,399 → $77,683 (+24.5%)
Median home value$253,900 → $373,700 (+47.2%)$215,600 → $331,400 (+53.7%)
Median gross rent$1,202 → $1,640 (+36.4%)$1,169 → $1,591 (+36.1%)

Cobb County

Population
751,218769,152
Median household income
$77,932$98,712
Median home value
$253,900$373,700
Median gross rent
$1,202$1,640

DeKalb County

Population
749,323762,105
Median household income
$62,399$77,683
Median home value
$215,600$331,400
Median gross rent
$1,169$1,591

Age & race/ethnicity

Age distribution (share)

Cobb CountyDeKalb County
Under 55.7%6.6%
5 to 1717.2%16.4%
18 to 249.0%8.4%
25 to 3414.5%16.4%
35 to 4414.2%14.4%
45 to 5413.8%12.7%
55 to 6412.3%11.7%
65 to 748.3%8.4%
75 and over4.9%4.9%

Race & ethnicity (share)

Cobb CountyDeKalb County
White (non-Hispanic)47.8%28.1%
Black or African American26.5%51.1%
American Indian & Alaska Native0.1%0.1%
Asian5.4%6.1%
Native Hawaiian & Pacific Islander0.0%0.1%
Some other race1.0%0.5%
Two or more races4.6%3.6%
Hispanic or Latino14.7%10.4%

Educational attainment (age 25+)

Share of adults 25+

Cobb CountyDeKalb County
No high school diploma7.2%9.2%
High school graduate17.7%20.1%
Some college or associate's24.7%24.0%
Bachelor's degree31.8%25.8%
Graduate or professional degree18.6%20.9%

Commute to work

How workers get to work (share)

Cobb CountyDeKalb County
Drove alone67.4%62.8%
Carpooled7.4%9.6%
Public transit0.6%4.1%
Walked1.2%1.3%
Bicycle0.0%0.2%
Worked from home21.1%20.0%
Other means2.2%1.9%

Housing

Units in structure (share)

Cobb CountyDeKalb County
1-unit, detached65.5%56.0%
1-unit, attached8.8%8.3%
2 to 4 units2.4%4.7%
5 to 19 units12.7%16.2%
20 or more units9.6%14.1%
Mobile home & other1.0%0.6%

Poverty & households

Cobb CountyDeKalb County
Poverty rate8.5%13.5%
Average household size2.592.64
Mean commute (minutes)2931
Median year structure built19891983

Full profiles

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