ZIP Code 54542

54542 is one of Wisconsin's ZIP codes, delivering to addresses in Long Lake, Florence County.

City: Long Lake
County: Florence County
State: Wisconsin
Prefix: 545xx

Where this code sits

54542 is part of the 545xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Long Lake.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 54542 delivers to without sharing its boundary.

ZIP codes nearest 54542

The ZIP codes whose reference points sit closest to 54542.
ZIP code	Distance	Delivers to
ZIP code 49927	9.7 mi	Gaastra, MI
ZIP code 49915	10 mi	Caspian, MI
ZIP code 49964	12 mi	Stambaugh, MI
ZIP code 49935	12 mi	Iron River, MI
ZIP code 49902	15 mi	Alpha, MI
ZIP code 54120	15 mi	Fence, WI
ZIP code 54511	17 mi	Argonne, WI
ZIP code 54103	18 mi	Armstrong Creek, 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 54542, plotted from its record coordinates.

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

Scope ZIP code 54542. 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.