ZIP Code 51645

51645 is one of Iowa's ZIP codes, delivering to addresses in Imogene, Fremont County.

City: Imogene
County: Fremont County
State: Iowa
Prefix: 516xx

Where this code sits

51645 is part of the 516xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Imogene.

Imogene Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51645 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51645

The ZIP codes whose reference points sit closest to 51645.
ZIP code	Distance	Delivers to
ZIP code 51649	6.6 mi	Randolph, IA
ZIP code 51603	7.5 mi	Shenandoah, IA
ZIP code 51638	7.8 mi	Essex, IA
ZIP code 51601	8.1 mi	Shenandoah, IA
ZIP code 51639	10 mi	Farragut, IA
ZIP code 51540	11 mi	Hastings, IA
ZIP code 51533	12 mi	Emerson, IA
ZIP code 51551	13 mi	Malvern, 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 51645, plotted from its record coordinates.

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

Scope ZIP code 51645. 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.