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