K
- (Ashoro-gun) Kumanosawa
- (Ashoro-gun) Kamirikubetsu
- (Ashoro-gun) Kamisakushū
- (Ashoro-gun) Kamitomamu
- (Ashoro-gun) Kitatomamu
- (Abashiri-gun) Kamisato
- (Abashiri-gun) Kyōwa
- (Abashiri-gun) Kashiwamachi
- (Abashiri-gun) Kita
- (Abashiri-gun) Kamihigashi
- (Kitami Shi) Kōseichō
- (Kitami Shi) Kitagami
- (Kitami Shi) Kaisei
- (Kitami Shi) Kawazoechō
- (Kitami Shi) Kōyōchō
- (Kitami Shi) Kawahigashi
- (Kitami Shi) Kaminikoro
- (Tokoro-gun) Kyōritsu
- (Tokoro-gun) Keisei
- (Tokoro-gun) Kawanishi
- (Tokoro-gun) Kita
- (Monbetsu Gun) Kita
- (Monbetsu Gun) Kiyokawa
- (Monbetsu Gun) Kotobukichō
- (Monbetsu Gun) Kashiwa
- (Kitami Shi) Koizumi
- (Kitami Shi) Katsuramachi
- (Kitami Shi) Kashiwagi
- (Kitami Shi) Kōei-nishimachi
- (Kitami Shi) Kitanijō