Hamilton County ZIP Codes
Illinois, United States · 5 codes
Hamilton County in Illinois has 5 ZIP codes, from 62817 to 62860, serving 5 places.
ZIP codes in Hamilton
Frequently asked questions
What is the ZIP code of Hamilton?
Hamilton has 5 ZIP codes, from 62817 to 62860. The table lists the places each one serves.
How many places are listed in Hamilton County?
5 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.