Ajo, Arizona

Ajo
Ajo plaza in 1990
Ajo plaza in 1990
Location in Pima County and the state of Arizona
Location in Pima County and the state of Arizona
Coordinates: 32°22′53″N 112°52′10″W / 32.38139°N 112.86944°W / 32.38139; -112.86944
CountryUnited States
StateArizona
CountyPima
Area
 • Total33.33 sq mi (86.32 km2)
 • Land33.33 sq mi (86.32 km2)
 • Water0.00 sq mi (0.00 km2)
Elevation
1,759 ft (536 m)
Population
 (2020)
 • Total3,039
 • Density91.19/sq mi (35.21/km2)
Time zoneUTC-7 (MST (no daylight saving time))
ZIP code
85321
Area code520
FIPS code04-00870
GNIS feature ID0000538
New Cornelia Copper Company in Ajo, 1922
Ajo and the New Cornelia mine. NASA photo

Ajo (/ˈɑːh/ AH-hoh) is an unincorporated community in Pima County, Arizona, United States. It is the closest community to Organ Pipe Cactus National Monument. The population was 3,039 at the 2020 census. Ajo is located on State Route 85 just 43 miles (69 km) from the Mexican border.

  1. ^ "2020 U.S. Gazetteer Files". United States Census Bureau. Retrieved October 29, 2021.