K
- (Nagai-shi) Kawarasawa
- (Murayama Shi) Kawashima
- (Nanyō Shi) Kawatoi
- (Higashitagawa-gun) Kinosawa
- (Mogami-gun) Kinzan
- (Yamagata-shi) Kitakawara
- (Higashitagawa-gun) Kiyokawa
- (Kitamurayama-gun) Komagome
- (Higashiokitama-gun) Komatsu
- (Nanyō Shi) Kōriyama
- (Nishimurayama-gun) Kaoyoshi
- (Yonezawa Shi) Kubotamachi-kubota
- (Tendō Shi) Kunomoto
- (Tendō Shi) Kurazō
- (Mogami-gun) Kaneyama
- (Kaminoyama-shi) Kaminoyama