ZIP Code 85139

85139 is one of Arizona's ZIP codes, delivering to addresses in Maricopa, Pinal County.

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

Where this code sits

85139 is part of the 851xx range, the group of codes handled by one mail processing centre. Maricopa is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Maricopa page.

Maricopa Arizona ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 85139 delivers to without sharing its boundary.

520 Area code 520

ZIP codes nearest 85139

The ZIP codes whose reference points sit closest to 85139.
ZIP code	Distance	Delivers to
ZIP code 85172	7.3 mi	Stanfield, AZ
ZIP code 85138	7.8 mi	Maricopa, AZ
ZIP code 85121	15 mi	Bapchule, AZ
ZIP code 85193	16 mi	Casa Grande, AZ
ZIP code 85122	18 mi	Casa Grande, AZ
ZIP code 85147	22 mi	Sacaton, AZ
ZIP code 85130	23 mi	Casa Grande, AZ
ZIP code 85248	23 mi	Chandler, 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 85139, plotted from its record coordinates.

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

Scope ZIP code 85139. 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.