ZIP Code 51649

51649 is one of Iowa's ZIP codes, delivering to addresses in Randolph, Fremont County.

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

Where this code sits

51649 is part of the 516xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Randolph.

Randolph Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51649 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51649

The ZIP codes whose reference points sit closest to 51649.
ZIP code	Distance	Delivers to
ZIP code 51653	6.1 mi	Tabor, IA
ZIP code 51645	6.6 mi	Imogene, IA
ZIP code 51652	9.2 mi	Sidney, IA
ZIP code 51551	9.5 mi	Malvern, IA
ZIP code 51540	10 mi	Hastings, IA
ZIP code 51654	11 mi	Thurman, IA
ZIP code 51639	11 mi	Farragut, IA
ZIP code 51603	12 mi	Shenandoah, 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 51649, plotted from its record coordinates.

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

Scope ZIP code 51649. 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.