ZIP Code 85122

85122 is one of Arizona's ZIP codes, delivering to addresses in Casa Grande, Pinal County.

City: Casa Grande
County: Pinal County
State: Arizona
Prefix: 851xx

Where this code sits

85122 is part of the 851xx range, the group of codes handled by one mail processing centre. Casa Grande is served by 4 ZIP codes in total; the full list, with the county each falls in, is on the Casa Grande page.

Casa Grande Arizona ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 85122 delivers to without sharing its boundary.

520 Area code 520

ZIP codes nearest 85122

The ZIP codes whose reference points sit closest to 85122.
ZIP code	Distance	Delivers to
ZIP code 85193	3.5 mi	Casa Grande, AZ
ZIP code 85130	5.9 mi	Casa Grande, AZ
ZIP code 85194	7.4 mi	Casa Grande, AZ
ZIP code 85123	11 mi	Arizona City, AZ
ZIP code 85172	12 mi	Stanfield, AZ
ZIP code 85138	13 mi	Maricopa, AZ
ZIP code 85128	14 mi	Coolidge, AZ
ZIP code 85131	14 mi	Eloy, 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 85122, plotted from its record coordinates.

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

Scope ZIP code 85122. 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.