| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ojo de Agua | city | Provincia de Alajuela | Costa Rica | 9.95 | -84.20 | 2746 | 103915 |
| Oricuajo | city | Provincia de Alajuela | Costa Rica | 9.95 | -84.62 | 495 | 11638 |
| Orotina | city | Provincia de Alajuela | Costa Rica | 9.90 | -84.53 | 528 | 8600 |