US Census Data

Cobb County vs Gwinnett County

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

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

Gwinnett County has the higher population (966,972 vs 769,152 in Cobb County). Cobb County has the higher median household income ($98,712 vs $84,823 in Gwinnett County). Cobb County has the higher median home value ($373,700 vs $345,700 in Gwinnett County).

Population, income & housing

Cobb CountyGwinnett County
Population769,152966,972
Median age37.4 yrs35.9 yrs
Median household income$98,712$84,823
Median home value$373,700$345,700
Median gross rent$1,640$1,713
Housing units311,556336,078
Homeownership rate67.0%66.7%
Bachelor's degree or higher50.4%38.7%
Unemployment rate4.5%4.1%

Trends (ACS 5-year, 2019–2023)

Cobb CountyGwinnett County
Population751,218 → 769,152 (+2.4%)915,046 → 966,972 (+5.7%)
Median household income$77,932 → $98,712 (+26.7%)$71,026 → $84,823 (+19.4%)
Median home value$253,900 → $373,700 (+47.2%)$217,900 → $345,700 (+58.7%)
Median gross rent$1,202 → $1,640 (+36.4%)$1,272 → $1,713 (+34.7%)

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

Gwinnett County

Population
915,046966,972
Median household income
$71,026$84,823
Median home value
$217,900$345,700
Median gross rent
$1,272$1,713

Age & race/ethnicity

Age distribution (share)

Cobb CountyGwinnett County
Under 55.7%6.2%
5 to 1717.2%20.2%
18 to 249.0%9.3%
25 to 3414.5%13.0%
35 to 4414.2%14.2%
45 to 5413.8%14.2%
55 to 6412.3%11.9%
65 to 748.3%7.1%
75 and over4.9%3.8%

Race & ethnicity (share)

Cobb CountyGwinnett County
White (non-Hispanic)47.8%32.0%
Black or African American26.5%27.8%
American Indian & Alaska Native0.1%0.1%
Asian5.4%12.8%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race1.0%0.4%
Two or more races4.6%3.6%
Hispanic or Latino14.7%23.2%

Educational attainment (age 25+)

Share of adults 25+

Cobb CountyGwinnett County
No high school diploma7.2%12.1%
High school graduate17.7%22.8%
Some college or associate's24.7%26.4%
Bachelor's degree31.8%25.2%
Graduate or professional degree18.6%13.6%

Commute to work

How workers get to work (share)

Cobb CountyGwinnett County
Drove alone67.4%69.0%
Carpooled7.4%11.4%
Public transit0.6%0.6%
Walked1.2%0.7%
Bicycle0.0%0.1%
Worked from home21.1%16.5%
Other means2.2%1.6%

Housing

Units in structure (share)

Cobb CountyGwinnett County
1-unit, detached65.5%71.1%
1-unit, attached8.8%6.5%
2 to 4 units2.4%3.2%
5 to 19 units12.7%10.4%
20 or more units9.6%7.3%
Mobile home & other1.0%1.6%

Poverty & households

Cobb CountyGwinnett County
Poverty rate8.5%10.5%
Average household size2.592.98
Mean commute (minutes)2933
Median year structure built19891995

Full profiles

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