| Post Office Name | US Post Office |
| Address | 20 N Plaza St |
| City | Ajo |
| State | Arizona |
| Phone Number | (520) 387-6602 |
| Latitude | 32.3421 |
| Longitude | -112.7540 |
85321 US Post Office in Ajo, Arizona is located at 20 N Plaza St. The Ajo Post Office Number is (520) 387-6602
