ZIP Code 54840

54840 is one of Wisconsin's ZIP codes, delivering to addresses in Grantsburg, Burnett County.

City: Grantsburg
County: Burnett County
State: Wisconsin
Prefix: 548xx

Where this code sits

54840 is part of the 548xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Grantsburg.

Grantsburg Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 54840 delivers to without sharing its boundary.

ZIP codes nearest 54840

The ZIP codes whose reference points sit closest to 54840.
ZIP code	Distance	Delivers to
ZIP code 55063	11 mi	Pine City, MN
ZIP code 55067	13 mi	Rock Creek, MN
ZIP code 54872	15 mi	Siren, WI
ZIP code 55069	15 mi	Rush City, MN
ZIP code 54006	17 mi	Cushing, WI
ZIP code 55037	18 mi	Hinckley, MN
ZIP code 54837	18 mi	Frederic, WI
ZIP code 54893	19 mi	Webster, 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 54840, plotted from its record coordinates.

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

Scope ZIP code 54840. 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.