Portage County ZIP Codes
Wisconsin, United States · 12 codes
Portage County in Wisconsin has 12 ZIP codes, from 54406 to 54921, serving 12 places.
ZIP codes in Portage
Frequently asked questions
What is the ZIP code of Portage?
Portage has 12 ZIP codes, from 54406 to 54921. The table lists the places each one serves.
How many places are listed in Portage County?
12 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.