- Ives Corner
- Island of Meadows
- Iona Island
- Indian Chief Islands
- Irish Settlement
- Iron Islands
- Ironton
- Independence Square
- Interlaken
- Isle of the Cayugas
- Isle of the Mohawks
- Isle of the Oneidas
- Isle of the Onondagas
- Isle of the Senecas
- Irelandville
- Indian Hills Mobile Home Community
- Interlaken Beach
- Isle of Pines Mobile Home Park
- Ingleside
- Indian Island
- Indian Island
- Indian Landing
- Indian Lake
- Ionia
- Irving
- Ireland Corners
- Igerna
- Indian Kettles
- Iron Furnace
- Idlewood On The Lake