Winnebago County ZIP Codes
Iowa, United States · 7 codes
Winnebago County in Iowa has 7 ZIP codes, from 50424 to 50478, serving 7 places.
ZIP codes in Winnebago
Frequently asked questions
What is the ZIP code of Winnebago?
Winnebago has 7 ZIP codes, from 50424 to 50478. The table lists the places each one serves.
How many places are listed in Winnebago County?
7 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.