
Ajo
- County:
- Pima County
- County Seat:
- No
- Area (mi²):
- 33.327
- State:
- Arizona
Ajo is a CDP located in Pima County, Arizona. Ajo has a 2025 population of 2,826. Ajo is currently declining at a rate of -1.12% annually but its population has increased by 5.02% since the most recent census, which recorded a population of 2,691 in 2020.
The average household income in Ajo is $69,060 with a poverty rate of 10.89%. The median age in Ajo is 47.4 years: 47.1 years for males, and 47.8 years for females.