ZIP Code 55804

55804 is one of Minnesota's ZIP codes, delivering to addresses in Duluth, St. Louis County.

City: Duluth
County: St. Louis County
State: Minnesota
Prefix: 558xx

Where this code sits

55804 is part of the 558xx range, the group of codes handled by one mail processing centre. Duluth is served by 14 ZIP codes in total; the full list, with the county each falls in, is on the Duluth page.

Duluth Minnesota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 55804 delivers to without sharing its boundary.

218 Area code 218

ZIP codes nearest 55804

The ZIP codes whose reference points sit closest to 55804.
ZIP code	Distance	Delivers to
ZIP code 55803	4.3 mi	Duluth, MN
ZIP code 55812	4.5 mi	Duluth, MN
ZIP code 55805	5.7 mi	Duluth, MN
ZIP code 55801	6.8 mi	Duluth, MN
ZIP code 55814	6.8 mi	Duluth, MN
ZIP code 55815	6.8 mi	Duluth, MN
ZIP code 55816	6.8 mi	Duluth, MN
ZIP code 55802	7.1 mi	Duluth, 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 55804, plotted from its record coordinates.

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

Scope ZIP code 55804. 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.