Arizona ZIP Codes

ZIP codes: 530
Cities & towns: 265
Counties: 15
Area codes: 5

How Arizona ZIP codes are numbered

850xx–865xx

The first three digits identify the sectional center facility that processes mail for a region, so an Arizona ZIP code can be placed geographically from its prefix alone. Each row names the city holding the most codes in that prefix.

Arizona three-digit ZIP prefixes, the codes in each, and the city that holds the most of them.
Prefix	ZIP codes	Main area
850xx	78	Phoenix
851xx	31	Apache Junction
852xx	63	Mesa
853xx	81	Glendale
855xx	24	Globe
856xx	53	Sierra Vista
857xx	55	Tucson
859xx	26	Show Low
860xx	37	Flagstaff
863xx	32	Prescott
864xx	30	Bullhead City
865xx	20	Blue Gap

Where Arizona's communities sit

Each point is an Arizona community with a published ZIP code list, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

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

Arizona cities by ZIP code count

largest 25

Area codes serving Arizona

Scope every ZIP code recorded in Arizona. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. The map outline is a convex envelope of published places, not a state boundary.