| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Onarachi | city | Chihuahua | Mexico | 27.74 | -107.61 | 7752 | 1281 |
| Onate | city | Chihuahua | Mexico | 30.16 | -107.62 | 5029 | 372 |
| Onoconapuchi | city | Chihuahua | Mexico | 27.35 | -107.86 | 4419 | 894 |
| Ontiveros | city | Chihuahua | Mexico | 28.18 | -107.67 | 9228 | 798 |