Dekalb, IL Insights: Population,
Zip Codes, Influence, and Service Areas

DeKalb (/dɪˈkælb/ dih-KALB) is a city in DeKalb County, Illinois, United States. The population was 40,290 at the 2020 census, down from 43,862 at the 2010 census. The city is named after decorated Franconian-French war hero Johann de Kalb, who died during the American Revolutionary War.

Zip Codes in Dekalb, IL that we also serve: 60115





Cities Close To Dekalb, IL That We Also Serve