Winnebago County ZIP Codes
Wisconsin, United States · 16 codes
Winnebago County in Wisconsin has 16 ZIP codes, from 54901 to 54986, serving 16 places.
ZIP codes in Winnebago
Frequently asked questions
What is the ZIP code of Winnebago?
Winnebago has 16 ZIP codes, from 54901 to 54986. The table lists the places each one serves.
How many places are listed in Winnebago County?
16 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.