Mason County ZIP Codes
Michigan, United States · 6 codes
Mason County in Michigan has 6 ZIP codes, from 49405 to 49458, serving 6 places.
ZIP codes in Mason
Frequently asked questions
What is the ZIP code of Mason?
Mason has 6 ZIP codes, from 49405 to 49458. The table lists the places each one serves.
How many places are listed in Mason County?
6 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.