ZIP Code 51045

51045 is one of Iowa's ZIP codes, delivering to addresses in Oyens, Plymouth County.

City: Oyens
County: Plymouth County
State: Iowa
Prefix: 510xx

Where this code sits

51045 is part of the 510xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Oyens.

Oyens Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51045 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51045

The ZIP codes whose reference points sit closest to 51045.
ZIP code	Distance	Delivers to
ZIP code 51050	5.2 mi	Remsen, IA
ZIP code 51031	6.0 mi	Le Mars, IA
ZIP code 51008	11 mi	Brunsville, IA
ZIP code 51003	11 mi	Alton, IA
ZIP code 51036	11 mi	Maurice, IA
ZIP code 51038	12 mi	Merrill, IA
ZIP code 51035	13 mi	Marcus, IA
ZIP code 51022	13 mi	Granville, 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 51045, plotted from its record coordinates.

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

Scope ZIP code 51045. 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.