ZIP Code 54455

54455 is one of Wisconsin's ZIP codes, delivering to addresses in Mosinee, Marathon County.

City: Mosinee
County: Marathon County
State: Wisconsin
Prefix: 544xx

Where this code sits

54455 is part of the 544xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mosinee.

Mosinee Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 54455 delivers to without sharing its boundary.

ZIP codes nearest 54455

The ZIP codes whose reference points sit closest to 54455.
ZIP code	Distance	Delivers to
ZIP code 54474	6.7 mi	Rothschild, WI
ZIP code 54402	8.2 mi	Wausau, WI
ZIP code 54476	8.9 mi	Schofield, WI
ZIP code 54401	12 mi	Wausau, WI
ZIP code 54448	12 mi	Marathon, WI
ZIP code 54403	13 mi	Wausau, WI
ZIP code 54443	14 mi	Junction City, WI
ZIP code 54471	15 mi	Ringle, WI

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 54455, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 54455. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.