Cook County ZIP Codes

Cook County is a county of Minnesota.

ZIP codes: 6
Cities & towns: 6
Area codes: 1
Land area: 1,453 sq mi

Every ZIP code in Cook County

556xx

The complete list of Cook County, MN ZIP codes with the city each one delivers to.
ZIP code	City
55604	Grand Marais
55605	Grand Portage
55606	Hovland
55612	Lutsen
55613	Schroeder
55615	Tofte

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Cook County codes above are listed without a column we would have to invent.

Cities and towns in Cook County

A further 5 places in Cook County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.

Area codes covering Cook County

Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.

218 Area code 218

Where Cook County's ZIP codes sit

Each point is the reference point of one Cook County ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

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

Scope every ZIP code recorded in Cook County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.