Santa Cruz County ZIP Codes

Santa Cruz County is a county of Arizona.

ZIP codes: 10
Cities & towns: 8
Area codes: 1
Land area: 1,236 sq mi

Every ZIP code in Santa Cruz County

856xx

The complete list of Santa Cruz County, AZ ZIP codes with the city each one delivers to.
ZIP code	City
85611	Elgin
85621	Nogales
85624	Patagonia
85628	Nogales
85637	Sonoita
85640	Tumacacori
85645	Amado
85646	Tubac
85648	Rio Rico
85662	Nogales

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Santa Cruz County codes above are listed without a column we would have to invent.

Cities and towns in Santa Cruz County

A further 6 places in Santa Cruz County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.

Area codes covering Santa Cruz County

Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.

520 Area code 520

Where Santa Cruz County's ZIP codes sit

Each point is the reference point of one Santa Cruz County ZIP code, 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

Scope every ZIP code recorded in Santa Cruz County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.