- Intercourse
- Inverrary
- Inwood
- Iona
- Iowa
- Irish Meeting House
- Irishtown
- Irishtown
- Irishtown
- Irishtown
- Irishtown
- Irishtown
- Iron Bridge
- Ironbridge Estates
- Iron City
- Iron City
- Iron Ridge
- Iron Springs
- Ironsides
- Ironstone
- Ironton
- Ironville
- Ironville
- Irvine
- Irving
- Isabella
- Isabella
- Iselin
- Iselin Heights
- Island Plain