ZIP Code 85644

85644 is one of Arizona's ZIP codes, delivering to addresses in Willcox, Cochise County.

City: Willcox
County: Cochise County
State: Arizona
Prefix: 856xx

Where this code sits

85644 is part of the 856xx range, the group of codes handled by one mail processing centre. Willcox is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Willcox page.

Willcox Arizona ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 85644 delivers to without sharing its boundary.

520 Area code 520

ZIP codes nearest 85644

The ZIP codes whose reference points sit closest to 85644.
ZIP code	Distance	Delivers to
ZIP code 85643	8.5 mi	Willcox, AZ
ZIP code 85606	12 mi	Cochise, AZ
ZIP code 85609	20 mi	Dragoon, AZ
ZIP code 85605	21 mi	Bowie, AZ
ZIP code 85670	26 mi	Fort Huachuca, AZ
ZIP code 85625	28 mi	Pearce, AZ
ZIP code 85627	32 mi	Pomerene, AZ
ZIP code 85602	33 mi	Benson, 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 85644, plotted from its record coordinates.

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

Scope ZIP code 85644. 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.