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Zip Code 85321 — Ajo, AZ

85321 is a ZIP Code associated with Ajo, AZ, located within Pima. The postal region supports an estimated population of 3,555 residents across Data Pending housing units, with a population density of 1.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (32.300620, -112.631690)

Data MetricLocal Statistic
Postal / Zip Code85321
Primary CityAjo
State / ProvinceAZ
CountyPima
Total Population3,555
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density1.0 people/sq mi
TimezoneAmerica/Phoenix

How 85321 Compares

MetricZIP 85321Pima CountyAZ State Average
Population3,5551,037,8067,380,680
Median IncomeData PendingN/AN/A
Population Density1.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 85341Lukeville23.2 mi37N/A
Zip 85634Sells39.8 mi5,038N/A
Zip 85337Gila Bend48.6 mi2,041N/A
Zip 85139Maricopa49.4 mi20,784N/A
Zip 85172Stanfield57.3 mi1,688N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →