DeKalb County, IL — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
100,512
Male
50,015
49.8%
Female
50,497
50.2%
Median Age
32.6 yrs
Avg Household Size
2.4
Foreign Born
6.4%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher19.6%
High School or Higher35.1%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
4.0%
Disability
0.0%
Non-English Home
4.6%
Married
35.3%
DeKalb County, IL has a population of 100,512 according to 2023 Census Bureau estimates. The median age is 32.6 years. The largest racial or ethnic group is White at 76.3% of the population. 19.6% of residents hold a bachelor's degree or higher. 6.4% of residents are foreign-born.