K
- (Mogami-gun) Kumataka
- (Mogami-gun) Kurosawa
- (Nanyō Shi) Koiwasawa
- (Nishiokitama-gun) Kurogamo
- (Yamagata-shi) Kaisho
- (Higashine Shi) Kanisawa
- (Nishimurayama-gun) Koyama
- (Obanazawa Shi) Kurenai
- (Obanazawa Shi) Kamiyanagiwatarido
- (Mogami-gun) Katsuchi
- (Mogami-gun) Katano
- (Mogami-gun) Kamimitsuzawa
- (Mogami-gun) Kyōzuka
- (Mogami-gun) Kan’onji
- (Mogami-gun) Kozōri
- (Mogami-gun) Kamabuchi
- (Sakata Shi) Kita’aosawa
- (Nishimurayama-gun) Kaishū
- (Higashiokitama-gun) Kameoka
- (Yonezawa Shi) Kugurishimizu
- (Nishiokitama-gun) Kotamagawa
- (Nishiokitama-gun) Kurumidaira
- (Nishiokitama-gun) Koya
- (Nishiokitama-gun) Kazuma
- (Nishiokitama-gun) Kawanaido
- (Yonezawa Shi) Konakazawa
- (Yonezawa Shi) Kawaii
- (Higashiokitama-gun) Kōya
- (Yonezawa Shi) Kyōzuka
- (Sakata Shi) Kuromori