ZIP Code 51528

51528 is one of Iowa's ZIP codes, delivering to addresses in Dow City, Crawford County.

City: Dow City
County: Crawford County
State: Iowa
Prefix: 515xx

Where this code sits

51528 is part of the 515xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dow City.

Dow City Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51528 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51528

The ZIP codes whose reference points sit closest to 51528.
ZIP code	Distance	Delivers to
ZIP code 51520	2.8 mi	Arion, IA
ZIP code 51529	8.1 mi	Dunlap, IA
ZIP code 51530	9.0 mi	Earling, IA
ZIP code 51442	9.7 mi	Denison, IA
ZIP code 51527	10 mi	Defiance, IA
ZIP code 51439	12 mi	Charter Oak, IA
ZIP code 51562	13 mi	Panama, IA
ZIP code 51454	13 mi	Manilla, 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 51528, plotted from its record coordinates.

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

Scope ZIP code 51528. 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.