ZIP Code 54603

54603 is one of Wisconsin's ZIP codes, delivering to addresses in La Crosse, La Crosse County.

City: La Crosse
County: La Crosse County
State: Wisconsin
Prefix: 546xx

Where this code sits

54603 is part of the 546xx range, the group of codes handled by one mail processing centre. La Crosse is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the La Crosse page.

La Crosse Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 54603 delivers to without sharing its boundary.

ZIP codes nearest 54603

The ZIP codes whose reference points sit closest to 54603.
ZIP code	Distance	Delivers to
ZIP code 54650	3.5 mi	Onalaska, WI
ZIP code 54601	3.8 mi	La Crosse, WI
ZIP code 55947	4.1 mi	La Crescent, MN
ZIP code 54602	5.7 mi	La Crosse, WI
ZIP code 55941	8.3 mi	Hokah, MN
ZIP code 55925	8.6 mi	Dakota, MN
ZIP code 54636	8.8 mi	Holmen, WI
ZIP code 54669	8.9 mi	West Salem, 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 54603, plotted from its record coordinates.

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

Scope ZIP code 54603. 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.