Marion County ZIP Codes
Iowa, United States · 12 codes
Marion County in Iowa has 12 ZIP codes, from 50044 to 50256, serving 12 places.
ZIP codes in Marion
Frequently asked questions
What is the ZIP code of Marion?
Marion has 12 ZIP codes, from 50044 to 50256. The table lists the places each one serves.
How many places are listed in Marion County?
12 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.