Clark County ZIP Codes
Illinois, United States · 6 codes
Clark County in Illinois has 6 ZIP codes, from 62420 to 62477, serving 6 places.
ZIP codes in Clark
Frequently asked questions
What is the ZIP code of Clark?
Clark has 6 ZIP codes, from 62420 to 62477. The table lists the places each one serves.
How many places are listed in Clark County?
6 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.