Marion County ZIP Codes
Ohio, United States · 10 codes
Marion County in Ohio has 10 ZIP codes, from 43301 to 43356, serving 10 places.
ZIP codes in Marion
Frequently asked questions
What is the ZIP code of Marion?
Marion has 10 ZIP codes, from 43301 to 43356. The table lists the places each one serves.
How many places are listed in Marion County?
10 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.