| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| I-iyo | city | Province of Nueva Vizcaya | Philippines | 16.2680556 | 121.1055556 | 1305 | 13998 |
| Ibung | city | Province of Nueva Vizcaya | Philippines | 16.6108333 | 121.185 | 839 | 27612 |
| Imugan | city | Province of Nueva Vizcaya | Philippines | 16.1588889 | 120.9036111 | 3116 | 18858 |
| Imugan Proper | city | Province of Nueva Vizcaya | Philippines | 16.1588889 | 120.9036111 | 3116 | 18858 |
| Inaban | city | Province of Nueva Vizcaya | Philippines | 16.3102778 | 121.1175 | 1253 | 14975 |
| Inaldo | city | Province of Nueva Vizcaya | Philippines | 16.4977778 | 121.1766667 | 856 | 64109 |
| Indiana | city | Province of Nueva Vizcaya | Philippines | 16.3422222 | 121.0741667 | 1230 | 18878 |
| Ineangan | city | Province of Nueva Vizcaya | Philippines | 16.3183333 | 121.0933333 | 1253 | 14975 |
| Inuman | city | Province of Nueva Vizcaya | Philippines | 16.4 | 121 | 2440 | 15474 |
| Ipang | city | Province of Nueva Vizcaya | Philippines | 16.5308333 | 121.1863889 | 823 | 76260 |