ZIP Code 54450

54450 is one of Wisconsin's ZIP codes, delivering to addresses in Mattoon, Shawano County.

City: Mattoon
County: Shawano County
State: Wisconsin
Prefix: 544xx

Where this code sits

54450 is part of the 544xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mattoon.

Mattoon Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 54450 delivers to without sharing its boundary.

ZIP codes nearest 54450

The ZIP codes whose reference points sit closest to 54450.
ZIP code	Distance	Delivers to
ZIP code 54464	3.5 mi	Phlox, WI
ZIP code 54416	6.1 mi	Bowler, WI
ZIP code 54414	9.8 mi	Birnamwood, WI
ZIP code 54409	9.8 mi	Antigo, WI
ZIP code 54150	11 mi	Neopit, WI
ZIP code 54430	13 mi	Elton, WI
ZIP code 54418	14 mi	Bryant, WI
ZIP code 54499	14 mi	Wittenberg, 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 54450, plotted from its record coordinates.

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

Scope ZIP code 54450. 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.