Hancock County ZIP Codes
Iowa, United States · 8 codes
Hancock County in Iowa has 8 ZIP codes, from 50423 to 50484, serving 8 places.
ZIP codes in Hancock
Frequently asked questions
What is the ZIP code of Hancock?
Hancock has 8 ZIP codes, from 50423 to 50484. The table lists the places each one serves.
How many places are listed in Hancock County?
8 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.