ZIP Code 51232

51232 is one of Iowa's ZIP codes, delivering to addresses in Ashton, Osceola County.

City: Ashton
County: Osceola County
State: Iowa
Prefix: 512xx

Where this code sits

51232 is part of the 512xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Ashton.

Ashton Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51232 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51232

The ZIP codes whose reference points sit closest to 51232.
ZIP code	Distance	Delivers to
ZIP code 51249	7.1 mi	Sibley, IA
ZIP code 51350	8.8 mi	Melvin, IA
ZIP code 51201	9.4 mi	Sheldon, IA
ZIP code 51244	9.5 mi	Matlock, IA
ZIP code 51248	9.6 mi	Sanborn, IA
ZIP code 51237	12 mi	George, IA
ZIP code 51243	12 mi	Little Rock, IA
ZIP code 51234	13 mi	Boyden, 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 51232, plotted from its record coordinates.

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

Scope ZIP code 51232. 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.