Alameda–Arita, Saga Prefecture Anaheim–Mito, Ibaraki Prefecture Antioch–Chichibu, Tokyo Bakersfield–Wakayama City, Wakayama Prefecture Berkeley–Sakai, Osaka Prefecture Burbank–Ota, Gunma Prefecture Carson–…
New Britain–Atsugi, Kanagawa Prefecture Wethersfield–Nagayo, Nagasaki Prefecture
Bath–Tsugaru, Aomori Prefecture Portland–Shinagawa, Tokyo
Sister State: Commonwealth of Massachusetts–Hokkaido Amherst–Kanegasaki, Iwate Prefecture Arlington–Nagaokakyo, Kyoto Prefecture Cambridge–Tsukuba Science City, Ibaraki Prefecture Concor– Nanae, Hokkaido Fairhaven/New…
Burlington–Nishinomiya, Hyogo Prefecture Rutland–Ishidoriya, Iwate Prefecture