DeKalb County ZIP Codes
Illinois, United States · 14 codes
DeKalb County in Illinois has 14 ZIP codes, from 60111 to 60556, serving 14 places.
ZIP codes in DeKalb
Frequently asked questions
What is the ZIP code of DeKalb?
DeKalb has 14 ZIP codes, from 60111 to 60556. The table lists the places each one serves.
How many places are listed in DeKalb County?
14 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.