ZIP Code 51346

51346 is one of Iowa's ZIP codes, delivering to addresses in Hartley, O'Brien County.

City: Hartley
County: O'Brien County
State: Iowa
Prefix: 513xx

Where this code sits

51346 is part of the 513xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hartley.

Hartley Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51346 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51346

The ZIP codes whose reference points sit closest to 51346.
ZIP code	Distance	Delivers to
ZIP code 51338	8.1 mi	Everly, IA
ZIP code 51248	9.1 mi	Sanborn, IA
ZIP code 51350	9.1 mi	Melvin, IA
ZIP code 51245	11 mi	Primghar, IA
ZIP code 51058	14 mi	Sutherland, IA
ZIP code 51231	14 mi	Archer, IA
ZIP code 51357	14 mi	Royal, IA
ZIP code 51354	15 mi	Ocheyedan, 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 51346, plotted from its record coordinates.

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

Scope ZIP code 51346. 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.