ZIP Code 51431

51431 is one of Iowa's ZIP codes, delivering to addresses in Arthur, Ida County.

City: Arthur
County: Ida County
State: Iowa
Prefix: 514xx

Where this code sits

51431 is part of the 514xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Arthur.

Arthur Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51431 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51431

The ZIP codes whose reference points sit closest to 51431.
ZIP code	Distance	Delivers to
ZIP code 51445	5.0 mi	Ida Grove, IA
ZIP code 51458	6.3 mi	Odebolt, IA
ZIP code 51448	11 mi	Kiron, IA
ZIP code 51006	12 mi	Battle Creek, IA
ZIP code 51053	12 mi	Schaller, IA
ZIP code 51020	12 mi	Galva, IA
ZIP code 51461	13 mi	Schleswig, IA
ZIP code 50535	13 mi	Early, 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 51431, plotted from its record coordinates.

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

Scope ZIP code 51431. 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.