ZIP Code 51022

51022 is one of Iowa's ZIP codes, delivering to addresses in Granville, Sioux County.

City: Granville
County: Sioux County
State: Iowa
Prefix: 510xx

Where this code sits

51022 is part of the 510xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Granville.

Granville Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51022 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51022

The ZIP codes whose reference points sit closest to 51022.
ZIP code	Distance	Delivers to
ZIP code 51003	6.1 mi	Alton, IA
ZIP code 51238	7.6 mi	Hospers, IA
ZIP code 51041	8.7 mi	Orange City, IA
ZIP code 51046	9.6 mi	Paullina, IA
ZIP code 51050	11 mi	Remsen, IA
ZIP code 51035	11 mi	Marcus, IA
ZIP code 51231	13 mi	Archer, IA
ZIP code 51045	13 mi	Oyens, 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 51022, plotted from its record coordinates.

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

Scope ZIP code 51022. 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.