ZIP Code 85601

85601 is one of Arizona's ZIP codes, delivering to addresses in Arivaca, Pima County.

City: Arivaca
County: Pima County
State: Arizona
Prefix: 856xx

Where this code sits

85601 is part of the 856xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Arivaca.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 85601 delivers to without sharing its boundary.

520 Area code 520

ZIP codes nearest 85601

The ZIP codes whose reference points sit closest to 85601.
ZIP code	Distance	Delivers to
ZIP code 85645	14 mi	Amado, AZ
ZIP code 85633	15 mi	Sasabe, AZ
ZIP code 85648	15 mi	Rio Rico, AZ
ZIP code 85640	16 mi	Tumacacori, AZ
ZIP code 85646	16 mi	Tubac, AZ
ZIP code 85622	22 mi	Green Valley, AZ
ZIP code 85736	22 mi	Tucson, AZ
ZIP code 85628	24 mi	Nogales, 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 85601, plotted from its record coordinates.

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

Scope ZIP code 85601. 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.