ZIP Code 85321
About Ajo
Ajo 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.
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Area Profile
US Census (ACS 5-year · Gazetteer)
4,313
population
$52,127
median household income
3
people / sq mi
$120,800
median home value
$920
median gross rent
45.4
median age
2,326
housing units
1,810
households
1343.8
land area (sq mi)
Key places in 85321
- Organ Pipe Cactus Family Picnic Ground park
- Gunsight Hills nature
- Kino Peak nature
- Ninemile Peak nature
- Quitobaquito Hills nature
- Baker Mine historic
Nearby notable places
- Ajo Peak nature
- Chico Shunie Hills nature
- Scarface Mountain nature
- Tepee Butte nature