ZIP Code 54423
Custer · Portage, Wisconsin
54423 is the ZIP code of Custer in Portage, Wisconsin, United States.
- ZIP Code
- 54423
- County
- Portage
- State
- Wisconsin
- Country
- United States
Place with ZIP code 54423
| Place | County | Location |
|---|---|---|
| Custer | Portage | 44.566, -89.415 |
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 54423?
Custer.
Which county and state is 54423 in?
Portage, Wisconsin, United States.
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.