Washtenaw County ZIP Codes
Michigan, United States · 19 codes
Washtenaw County in Michigan has 19 ZIP codes, from 48103 to 48198, serving 19 places.
ZIP codes in Washtenaw
Frequently asked questions
What is the ZIP code of Washtenaw?
Washtenaw has 19 ZIP codes, from 48103 to 48198. The table lists the places each one serves.
How many places are listed in Washtenaw County?
19 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.