DeKalb Flag

DeKalb

County:
DeKalb County
County Seat:
No
Area (mi²):
17.33
State:
Illinois

DeKalb is a city located in DeKalb County, Illinois. DeKalb has a 2025 population of 40,205. DeKalb is currently declining at a rate of -0.01% annually and its population has decreased by -0.03% since the most recent census, which recorded a population of 40,219 in 2020.

The average household income in DeKalb is $65,561 with a poverty rate of 25.7%.The median age in DeKalb is 25.4 years: 25 years for males, and 26 years for females.

40.2K
Total Population
2,320
Density (mi²)
-3 -0.01%
Growth

DeKalb Population

DeKalb Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of DeKalb includes 62.59% White, 15.2% Black or African American, 5.28% other race, 3.9% Asian, and smaller percentages for Native American and multiracial populations.

Population by Race

White (62.6%)

Black or African American (15.2%)

Two or more races (12.2%)

Other race (5.3%)

Asian (3.9%)

Native American (0.8%)

Race
Population
Percentage (of total)
White25,32862.59%
Black or African American6,14915.2%
Two or more races4,94012.21%
Other race2,1375.28%
Asian1,5783.9%
Native American3320.82%

DeKalb Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

DeKalb's average per capita income is $43,030. Household income levels show a median of $46,564. The poverty rate stands at 25.7%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$103,117-
Families$67,617$84,714
Households$46,564$65,561
Non Families$30,789$43,086

$43,030

Average Income

$46,564

Median Household Income

25.7%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)