ZIP Code 51544

51544 is one of Iowa's ZIP codes, delivering to addresses in Lewis, Cass County.

City: Lewis
County: Cass County
State: Iowa
Prefix: 515xx

Where this code sits

51544 is part of the 515xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Lewis.

Lewis Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51544 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51544

The ZIP codes whose reference points sit closest to 51544.
ZIP code	Distance	Delivers to
ZIP code 51535	5.8 mi	Griswold, IA
ZIP code 50022	7.7 mi	Atlantic, IA
ZIP code 50843	10 mi	Cumberland, IA
ZIP code 51552	11 mi	Marne, IA
ZIP code 50847	11 mi	Grant, IA
ZIP code 51532	13 mi	Elliott, IA
ZIP code 50274	13 mi	Wiota, IA
ZIP code 51577	14 mi	Walnut, IA

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 51544, plotted from its record coordinates.

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

Scope ZIP code 51544. 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.