ZIP Code 56003

56003 is one of Minnesota's ZIP codes, delivering to addresses in Mankato, Nicollet County.

City: Mankato
County: Nicollet County
State: Minnesota
Prefix: 560xx

Where this code sits

56003 is part of the 560xx range, the group of codes handled by one mail processing centre. Mankato is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the Mankato page.

Mankato Minnesota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 56003 delivers to without sharing its boundary.

ZIP codes nearest 56003

The ZIP codes whose reference points sit closest to 56003.
ZIP code	Distance	Delivers to
ZIP code 56002	5.8 mi	Mankato, MN
ZIP code 56074	6.0 mi	Nicollet, MN
ZIP code 56001	6.5 mi	Mankato, MN
ZIP code 56050	8.7 mi	Kasota, MN
ZIP code 56055	9.1 mi	Lake Crystal, MN
ZIP code 56082	9.9 mi	Saint Peter, MN
ZIP code 56024	12 mi	Eagle Lake, MN
ZIP code 56034	13 mi	Garden City, 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 56003, plotted from its record coordinates.

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

Scope ZIP code 56003. 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.