- Ida
- Imboden
- Immanuel
- Imo
- Index
- Indian
- Indian Bay
- Ingalls
- Ingleside
- Ingram
- Ink
- Ione
- Ionia
- Irma
- Iron Springs
- Iron Springs
- Ironton
- Island
- Island Number 58
- Island Number 61
- Island Number 62
- Island Number 64
- Island Number 66
- Island Number 68
- Island Number 69
- Island Number 71
- Island Number 81
- Island Number 82
- Island Town
- Iuka