ZIP Code 56557

56557 is one of Minnesota's ZIP codes, delivering to addresses in Mahnomen, Mahnomen County.

City: Mahnomen
County: Mahnomen County
State: Minnesota
Prefix: 565xx

Where this code sits

56557 is part of the 565xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mahnomen.

Mahnomen Minnesota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 56557 delivers to without sharing its boundary.

218 Area code 218

ZIP codes nearest 56557

The ZIP codes whose reference points sit closest to 56557.
ZIP code	Distance	Delivers to
ZIP code 56516	8.3 mi	Bejou, MN
ZIP code 56589	10 mi	Waubun, MN
ZIP code 56566	13 mi	Naytahwaush, MN
ZIP code 56592	15 mi	Winger, MN
ZIP code 56545	16 mi	Gary, MN
ZIP code 56569	16 mi	Ogema, MN
ZIP code 56591	17 mi	White Earth, MN
ZIP code 56541	17 mi	Flom, MN

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 56557, plotted from its record coordinates.

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

Scope ZIP code 56557. 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.