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| Community | County | Comments | |
| Imo | Garfield | ||
| Independence | Le Flore | ||
| Indian Meadows | Cherokee | ||
| Ingalls | Payne | ||
| Ingersoll | Alfalfa | ||
| Iona | Murray | ||
| Iron Post | Creek | 35°43′35″N 96°24′20″W / 35.72639°N 96.40556°W / 35.72639; -96.40556 | |
| Iron Stob Corner | McCurtain | ||
| Irving | Jefferson | ||
| Isabella | Major |
Read more about this topic: List Of Unincorporated Communities In Oklahoma