In 2020, DeKalb County, IL had a population of 105k people with a median age of 31.3 and a median household income of $62,353. Between 2019 and 2020 the population of DeKalb County, IL grew from 104,366 to 104,588, a 0.213% increase and its median household income declined from $63,317 to $62,353, a −1.52% decrease.
The 5 largest ethnic groups in DeKalb County, IL are White (Non-Hispanic) (76.1%), Black or African American (Non-Hispanic) (7.24%), White (Hispanic) (6.65%), Other (Hispanic) (3.34%), and Two+ (Non-Hispanic) (2.97%).
None of the households in DeKalb County, IL reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
96.1% of the residents in DeKalb County, IL are U.S. citizens.
The largest universities in DeKalb County, IL are Northern Illinois University (4,648 degrees awarded in 2020), Kishwaukee College (897 degrees), and Debutantes School of Cosmetology and Nail Technology (23 degrees).
In 2020, the median property value in DeKalb County, IL was $182,300, and the homeownership rate was 57.9%. Most people in DeKalb County, IL drove alone to work, and the average commute time was 26.5 minutes. The average car ownership in DeKalb County, IL was 2 cars per household.