ZIP Code 85371

85371 is one of Arizona's ZIP codes, delivering to addresses in Poston, La Paz County.

City: Poston
County: La Paz County
State: Arizona
Prefix: 853xx

Where this code sits

85371 is part of the 853xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Poston.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 85371 delivers to without sharing its boundary.

928 Area code 928

ZIP codes nearest 85371

The ZIP codes whose reference points sit closest to 85371.
ZIP code	Distance	Delivers to
ZIP code 85344	13 mi	Parker, AZ
ZIP code 92242	13 mi	Earp, CA
ZIP code 92280	15 mi	Vidal, CA
ZIP code 85346	22 mi	Quartzsite, AZ
ZIP code 85325	23 mi	Bouse, AZ
ZIP code 85359	24 mi	Quartzsite, AZ
ZIP code 92267	25 mi	Parker Dam, CA
ZIP code 85334	27 mi	Ehrenberg, AZ

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 85371, plotted from its record coordinates.

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

Scope ZIP code 85371. 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.