Ionia County ZIP Codes
Michigan, United States · 13 codes
Ionia County in Michigan has 13 ZIP codes, from 48809 to 48887, serving 13 places.
ZIP codes in Ionia
Frequently asked questions
What is the ZIP code of Ionia?
Ionia has 13 ZIP codes, from 48809 to 48887. The table lists the places each one serves.
How many places are listed in Ionia County?
13 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.