DeKalb County Population

1840–2026

22,062

2026 projection

9.3% since 2020 (increase)

05K10K15K20K25K1840186018801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for DeKalb County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202622,062+1890.86%
202521,873+1890.87%
202421,684+3831.80%
202321,301+3141.50%
202220,987+4842.36%
202120,503+3171.57%
202020,186-2231.09%
201920,409+3641.82%
201820,045+2281.15%
201719,817+4032.08%

Showing 10 of 33 years.

DeKalb County Demographics

41.9median age

Median age

Female44.1 yrs
Male39.4 yrs

Adults

16,402
3,933 seniors (65+) · 24% of adults12,469 other adults

Sex

Female 50.1% · 10,493Male 49.9% · 10,466

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 210 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

DeKalb County Income

$53,153median household income

Median household income

$53,153

Half of households earn more, half earn less

Median earnings

$41,931

Typical yearly pay for a worker 25 or older.

Poverty rate

18.6%

About 1 in 5 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

DeKalb County Marital Status

56% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married56%58%53%
Never married23%26%21%
Divorced13%11%15%
Widowed7%4%10%
Separated1%2%<1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201