ZIP Code 54403

54403 is one of Wisconsin's ZIP codes, delivering to addresses in Wausau, Marathon County.

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

Where this code sits

54403 is part of the 544xx range, the group of codes handled by one mail processing centre. Wausau is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the Wausau page.

Wausau Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 54403 delivers to without sharing its boundary.

ZIP codes nearest 54403

The ZIP codes whose reference points sit closest to 54403.
ZIP code	Distance	Delivers to
ZIP code 54476	4.0 mi	Schofield, WI
ZIP code 54471	5.2 mi	Ringle, WI
ZIP code 54474	6.4 mi	Rothschild, WI
ZIP code 54417	7.9 mi	Brokaw, WI
ZIP code 54401	8.6 mi	Wausau, WI
ZIP code 54408	9.3 mi	Aniwa, WI
ZIP code 54440	12 mi	Hatley, WI
ZIP code 54402	12 mi	Wausau, 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 54403, plotted from its record coordinates.

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

Scope ZIP code 54403. 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.