- Ironton
- Imperial Mobile Home Park
- Ilesboro
- Indian Head Village
- Indian Creek
- Indian Trail Estates
- Ironton Junction
- Island Creek
- Indian Hills Mobile Court
- Iron City
- Island View
- Immergrun
- Indian Island
- Ironville
- Island
- Iberia
- Irwin
- Isle Saint George
- Idlewild
- Island Number 3
- Ideal Mobile Home Park
- Irvington
- Ingomar
- Ironspot
- Irville
- Indian Springs
- Idaho
- Industry
- Iler