Keokuk County ZIP Codes
Iowa, United States · 15 codes
Keokuk County in Iowa has 15 ZIP codes, from 50104 to 52591, serving 15 places.
ZIP codes in Keokuk
Frequently asked questions
What is the ZIP code of Keokuk?
Keokuk has 15 ZIP codes, from 50104 to 52591. The table lists the places each one serves.
How many places are listed in Keokuk County?
15 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.