ZIP Code 51002

51002 is one of Iowa's ZIP codes, delivering to addresses in Alta, Buena Vista County.

City: Alta
County: Buena Vista County
State: Iowa
Prefix: 510xx

Where this code sits

51002 is part of the 510xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Alta.

Alta Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51002 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51002

The ZIP codes whose reference points sit closest to 51002.
ZIP code	Distance	Delivers to
ZIP code 50588	6.3 mi	Storm Lake, IA
ZIP code 51005	6.4 mi	Aurelia, IA
ZIP code 50592	7.3 mi	Truesdale, IA
ZIP code 51053	12 mi	Schaller, IA
ZIP code 50576	13 mi	Rembrandt, IA
ZIP code 51020	13 mi	Galva, IA
ZIP code 51012	13 mi	Cherokee, IA
ZIP code 51033	14 mi	Linn Grove, 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 51002, plotted from its record coordinates.

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

Scope ZIP code 51002. 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.