ZIP Code 51650

51650 is one of Iowa's ZIP codes, delivering to addresses in Riverton, Fremont County.

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

Where this code sits

51650 is part of the 516xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Riverton.

Riverton Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51650 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51650

The ZIP codes whose reference points sit closest to 51650.
ZIP code	Distance	Delivers to
ZIP code 51640	4.2 mi	Hamburg, IA
ZIP code 51639	6.6 mi	Farragut, IA
ZIP code 51652	6.9 mi	Sidney, IA
ZIP code 51603	13 mi	Shenandoah, IA
ZIP code 51601	13 mi	Shenandoah, IA
ZIP code 64496	13 mi	Watson, MO
ZIP code 51648	13 mi	Percival, IA
ZIP code 51649	14 mi	Randolph, 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 51650, plotted from its record coordinates.

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

Scope ZIP code 51650. 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.