| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Igubay | city | Province of Zamboanga del Sur | Philippines | 7.57 | 123.33 | 19 | 36240 |
| Ilisan | city | Province of Zamboanga del Sur | Philippines | 7.51 | 122.99 | 141 | 11754 |
| Imelda | city | Province of Zamboanga del Sur | Philippines | 7.65 | 123.95 | 0 | 7781 |
| Inasagan | city | Province of Zamboanga del Sur | Philippines | 7.98 | 123.58 | 656 | 37113 |
| Ipil | city | Province of Zamboanga del Sur | Philippines | 7.78 | 122.59 | 45 | 18353 |