ZIP Code 54479

54479 is one of Wisconsin's ZIP codes, delivering to addresses in Spencer, Marathon County.

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

Where this code sits

54479 is part of the 544xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Spencer.

Spencer Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 54479 delivers to without sharing its boundary.

ZIP codes nearest 54479

The ZIP codes whose reference points sit closest to 54479.
ZIP code	Distance	Delivers to
ZIP code 54488	5.8 mi	Unity, WI
ZIP code 54420	7.9 mi	Chili, WI
ZIP code 54404	8.4 mi	Marshfield, WI
ZIP code 54472	8.4 mi	Marshfield, WI
ZIP code 54449	8.5 mi	Marshfield, WI
ZIP code 54446	8.9 mi	Loyal, WI
ZIP code 54421	12 mi	Colby, WI
ZIP code 54441	12 mi	Hewitt, 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 54479, plotted from its record coordinates.

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

Scope ZIP code 54479. 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.