Mahaska County ZIP Codes
Iowa, United States · 9 codes
Mahaska County in Iowa has 9 ZIP codes, from 50027 to 52595, serving 9 places.
ZIP codes in Mahaska
Frequently asked questions
What is the ZIP code of Mahaska?
Mahaska has 9 ZIP codes, from 50027 to 52595. The table lists the places each one serves.
How many places are listed in Mahaska County?
9 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.