ZIP Code 51546

51546 is one of Iowa's ZIP codes, delivering to addresses in Logan, Harrison County.

City: Logan
County: Harrison County
State: Iowa
Prefix: 515xx

Where this code sits

51546 is part of the 515xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Logan.

Logan Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51546 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51546

The ZIP codes whose reference points sit closest to 51546.
ZIP code	Distance	Delivers to
ZIP code 51550	5.6 mi	Magnolia, IA
ZIP code 51555	7.6 mi	Missouri Valley, IA
ZIP code 51579	7.9 mi	Woodbine, IA
ZIP code 51556	10 mi	Modale, IA
ZIP code 51557	12 mi	Mondamin, IA
ZIP code 51563	13 mi	Persia, IA
ZIP code 51542	13 mi	Honey Creek, IA
ZIP code 51564	14 mi	Pisgah, 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 51546, plotted from its record coordinates.

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

Scope ZIP code 51546. 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.