| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Old San Mariano | city | Province of Isabela | Philippines | 16.99 | 122.0433333 | 324 | 7189 |
| Old San Pablo | city | Province of Isabela | Philippines | 17.4488889 | 121.7963889 | 209 | 14938 |
| Osariz | city | Province of Isabela | Philippines | 16.8269444 | 121.525 | 337 | 33619 |
| Oscaris | city | Province of Isabela | Philippines | 16.8269444 | 121.525 | 337 | 33619 |
| Oscariz | city | Province of Isabela | Philippines | 16.8269444 | 121.525 | 337 | 33619 |
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