Idaho
- Boise:
- Chita, Russia
- Guernica, Basque Country, Spain
- Coeur d'Alene:
- Cranbrook, British Columbia, Canada
- Idaho Falls:
- Tōkai, Japan
- Pocatello:
- Iwamizawa, Japan
- Kwaremanguel, Burkina Faso
- Sun Valley:
- Kitzbühel, Austria (1967)
- Yamanouchi, Japan
Read more about this topic: List Of Sister Cities In The United States