Ajo pronounced Ah-ho is located in western Pima County in the western part of Arizona. It is south of Interstate 8 and just off State Highway 85. It is approximately 110 miles from Phoenix and 131 miles from Tucson. It is a gateway into Mexico and to the Organ Pipe Cactus National Monument. It is famous for its Spanish colonial architecture, historic railway station, relaxed charm, breathtaking vistas, and vibrant sunsets.
Ajo is an ethnically diverse community and the birthplace of copper mining in Arizona. The principal source of the town’s economy is tourism, though Phelps Dodge hopes to re-establish the copper mining industry which ceased operation in 1986. It is a popular tourist destination and retirement community offering a somewhat inexpensive lifestyle. It has also become the home of border patrollers of late. Ajo is a gateway for visitors traveling to Mexico, Organ Pipe Cactus National Monument, and the Tohono O’odham Indian Reservation (and its casino.)

In Spanish, ajo means “garlic.” Wild garlic plants (the Ajo lily or desert lily an onion-like plant) that grew in the surrounding hills were responsible for the naming of the community. Some also suspect the name comes from Papago Indian word for “paint.” The Papago Indians obtained red paint pigments from this area.
Population / Elevation
Population: About 4000 (2007)
Elevation: 1798 feet above sea level
Size: 28.1 square miles
Weather / Climate

Golf -Tennis -Bowling -Swimming -Organized community events.
Events
January - Annual Piñata Contest
February - Sonoran Shindig
February - Annual Fiddler’s Contest
March - Annual O’odham Day Celebration
November - Copper Days and Great Western Street Fair
November - Desert Dust and Classic Rust Car Show
November - Paws, Claws, and Snakes
Pet Parade
December - La Posada - Piñata, candle light procession
Follow DesertUSA