- Inavale
- Independence
- Itaska
- Irvine Mills
- Ischua
- Ishua Valley Estates Mobile Home Park
- Indian Cove
- Ira
- Ivory
- Ives Settlement
- Ingraham
- Irona
- Ivanhoe
- Irondale
- Iroquois
- Irishtown
- Ironville
- Indian Village Mobile Home Park
- Indian Falls
- Inlet
- Inman Island
- Island House
- Indian Castle
- Ingham Mills
- Ingham Mills Station
- Irish Settlement
- Irondale
- Ives Hollow
- Idlewild Island
- Imperial Isle