DeKalb County vs Gwinnett County

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

DeKalb 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 762,105 in DeKalb County). Gwinnett County has the higher median household income ($84,823 vs $77,683 in DeKalb County). Gwinnett County has the higher median home value ($345,700 vs $331,400 in DeKalb County).

Population, income & housing

	DeKalb County	Gwinnett County
Population	762,105	966,972
Median age	36.3 yrs	35.9 yrs
Median household income	$77,683	$84,823
Median home value	$331,400	$345,700
Median gross rent	$1,591	$1,713
Housing units	328,614	336,078
Homeownership rate	58.5%	66.7%
Bachelor's degree or higher	46.7%	38.7%
Unemployment rate	6.4%	4.1%

Trends (ACS 5-year, 2019–2023)

	DeKalb County	Gwinnett County
Population	749,323 → 762,105 (+1.7%)	915,046 → 966,972 (+5.7%)
Median household income	$62,399 → $77,683 (+24.5%)	$71,026 → $84,823 (+19.4%)
Median home value	$215,600 → $331,400 (+53.7%)	$217,900 → $345,700 (+58.7%)
Median gross rent	$1,169 → $1,591 (+36.1%)	$1,272 → $1,713 (+34.7%)

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

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)

	DeKalb County	Gwinnett County
Under 5	6.6%	6.2%
5 to 17	16.4%	20.2%
18 to 24	8.4%	9.3%
25 to 34	16.4%	13.0%
35 to 44	14.4%	14.2%
45 to 54	12.7%	14.2%
55 to 64	11.7%	11.9%
65 to 74	8.4%	7.1%
75 and over	4.9%	3.8%

Race & ethnicity (share)

	DeKalb County	Gwinnett County
White (non-Hispanic)	28.1%	32.0%
Black or African American	51.1%	27.8%
American Indian & Alaska Native	0.1%	0.1%
Asian	6.1%	12.8%
Native Hawaiian & Pacific Islander	0.1%	0.0%
Some other race	0.5%	0.4%
Two or more races	3.6%	3.6%
Hispanic or Latino	10.4%	23.2%

Educational attainment (age 25+)

Share of adults 25+

	DeKalb County	Gwinnett County
No high school diploma	9.2%	12.1%
High school graduate	20.1%	22.8%
Some college or associate's	24.0%	26.4%
Bachelor's degree	25.8%	25.2%
Graduate or professional degree	20.9%	13.6%

Commute to work

How workers get to work (share)

	DeKalb County	Gwinnett County
Drove alone	62.8%	69.0%
Carpooled	9.6%	11.4%
Public transit	4.1%	0.6%
Walked	1.3%	0.7%
Bicycle	0.2%	0.1%
Worked from home	20.0%	16.5%
Other means	1.9%	1.6%

Housing

Units in structure (share)

	DeKalb County	Gwinnett County
1-unit, detached	56.0%	71.1%
1-unit, attached	8.3%	6.5%
2 to 4 units	4.7%	3.2%
5 to 19 units	16.2%	10.4%
20 or more units	14.1%	7.3%
Mobile home & other	0.6%	1.6%

Poverty & households

	DeKalb County	Gwinnett County
Poverty rate	13.5%	10.5%
Average household size	2.64	2.98
Mean commute (minutes)	31	33
Median year structure built	1983	1995