- Iuka
- Indian Creek
- Indian Lake
- Inez
- Ingram
- Itasca
- Imperial
- Indian Hills
- Industry
- Indianola Island
- Illinois Heights Colonia
- Ismael Montalvo Colonia Number 1
- Ismael Montalvo Colonia Number 2
- Idalou
- Impact
- Ingleside
- Ingleside On-the-Bay
- Iowa Colony
- Iowa Park
- Iraan
- Iredell
- Irving
- Italy
- Imperial Estates
- Imperial Gardens
- Ida
- Indian Gap
- Idylwood
- Imperial Valley
- Intercontinental Village