DeKalb demographics profile

Population density (sq mi)2,69422291
Median age24.537.437.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)35%55%55%
Families w/ Kids under 1850%44%43%
Speak English84%77%79%
Speak Spanish8%13%13%
DeKalb, IL has a population of 43,269 and is the 948th largest city in the United States. The population density is 2,694 per sq mi which is 1112% higher than the Illinois average and 2873% higher than the national average. The median age in DeKalb is 25 which is approximately 34% lower than the Illinois average of 37. In DeKalb, 35% of the population over 15 years of age are married, 84% speak English and 8% speak Spanish. 73% of DeKalb residents were born in Illinois, 17% were born out of state, 0% were born outside of the United States and 9% were foreign born.

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Did you know?

  • The population density in DeKalb is 1112% higher than Illinois.
  • The median age in DeKalb is 34% lower than Illinois.
  • In DeKalb 72.98% of the population is White.
  • In DeKalb 13.57% of the population is Black or African American.
  • In DeKalb 4.58% of the population is Asian.

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DeKalb population breakdown by race

Black or African American13.57%14.30%12.63%
American Indian0.09%0.23%0.82%
Native Hawaiian0.00%0.03%0.18%
Mixed race3.41%2.34%3.06%
Other race5.38%5.86%4.75%
In DeKalb, 12.6% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

DeKalb age breakdown

Marital status

Age of children in married couples

Source: The DeKalb, IL demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).
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