- Island Number 29
- Island Number 317
- Island Number 318
- Island Number 319
- Island Number 322
- Island Number 328
- Island Number 330
- Island Number 336 (historical)
- Island Number 347
- Island Number 419
- Island Number 475
- Island Number 476
- Island of Canton
- Island View
- Ivanhoe
- Ivanhoe
- Ivy
- Ivy Club of Northbrook
- Ivy Heights
- Illiopolis
- Indian Creek
- Indian Head Park
- Ingalls Park
- Ipava
- Island Lake
- Itasca
- Ivesdale