Gratiot County ZIP Codes
Michigan, United States · 15 codes
Gratiot County in Michigan has 15 ZIP codes, from 48615 to 48889, serving 15 places.
ZIP codes in Gratiot
Frequently asked questions
What is the ZIP code of Gratiot?
Gratiot has 15 ZIP codes, from 48615 to 48889. The table lists the places each one serves.
How many places are listed in Gratiot 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.