ZIP Code 51531

51531 is one of Iowa's ZIP codes, delivering to addresses in Elk Horn, Shelby County.

City: Elk Horn
County: Shelby County
State: Iowa
Prefix: 515xx

Where this code sits

51531 is part of the 515xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Elk Horn.

Elk Horn Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51531 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51531

The ZIP codes whose reference points sit closest to 51531.
ZIP code	Distance	Delivers to
ZIP code 51543	3.7 mi	Kimballton, IA
ZIP code 50042	5.4 mi	Brayton, IA
ZIP code 51552	9.0 mi	Marne, IA
ZIP code 50117	9.2 mi	Hamlin, IA
ZIP code 50076	11 mi	Exira, IA
ZIP code 51577	11 mi	Walnut, IA
ZIP code 50025	13 mi	Audubon, IA
ZIP code 50022	13 mi	Atlantic, 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 51531, plotted from its record coordinates.

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

Scope ZIP code 51531. 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.