- Island White
- Indian Lakes Estates
- Indian Springs
- Irrigosa
- Italian Swiss Colony
- Inverness Park
- Incline
- Indian Gulch
- Indian Springs
- Inglenook
- Ingram
- Irmulco
- Iverson Indian Rancheria
- Ingomar
- Independence
- Imperial
- Indian Wells
- Inverness
- Indian Island
- Iceland
- Indiana Jones Adventure
- Idlewild
- Iowa Hill
- Idyllwild-Pine Cove
- Inca
- Indian Oaks
- Indio Hills
- Ida Island
- Imperial Beach
- Indian Falls