ZIP Code 85172

85172 is one of Arizona's ZIP codes, delivering to addresses in Stanfield, Pinal County.

City: Stanfield
County: Pinal County
State: Arizona
Prefix: 851xx

Where this code sits

85172 is part of the 851xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Stanfield.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 85172 delivers to without sharing its boundary.

520 Area code 520

ZIP codes nearest 85172

The ZIP codes whose reference points sit closest to 85172.
ZIP code	Distance	Delivers to
ZIP code 85139	7.3 mi	Maricopa, AZ
ZIP code 85138	8.9 mi	Maricopa, AZ
ZIP code 85193	10 mi	Casa Grande, AZ
ZIP code 85122	12 mi	Casa Grande, AZ
ZIP code 85130	16 mi	Casa Grande, AZ
ZIP code 85121	18 mi	Bapchule, AZ
ZIP code 85123	19 mi	Arizona City, AZ
ZIP code 85194	20 mi	Casa Grande, 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 85172, plotted from its record coordinates.

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

Scope ZIP code 85172. 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.