| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ibaugan | city | Province of Sorsogon | Philippines | 13.0155556 | 123.6444444 | 154 | 36286 |
| Ilawod | city | Province of Sorsogon | Philippines | 12.85 | 123.9833333 | 49 | 30541 |
| Ilihan | city | Province of Sorsogon | Philippines | 12.7666667 | 124.1 | 646 | 27423 |
| Inalapan | city | Province of Sorsogon | Philippines | 12.7469444 | 123.8486111 | 75 | 24783 |
| Inamoc | city | Province of Sorsogon | Philippines | 12.7219444 | 123.8522222 | 68 | 24783 |
| Inang | city | Province of Sorsogon | Philippines | 12.9769444 | 123.7388889 | 157 | 34941 |
| Inararan | city | Province of Sorsogon | Philippines | 12.6986111 | 123.8586111 | 16 | 21615 |
| Incarisan | city | Province of Sorsogon | Philippines | 12.8425 | 123.8805556 | 144 | 17768 |
| Incarizan | city | Province of Sorsogon | Philippines | 12.8425 | 123.8805556 | 144 | 17768 |
| Irosin | city | Province of Sorsogon | Philippines | 12.7013889 | 124.0386111 | 262 | 41057 |
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