- Kitahama
- Kusatsu
- Kaigake
- Kaizu
- Kami-toyoura
- Kamide
- Kamitanakami-makichō
- Kamitanakami-ōdoriichō
- Kamo
- Kan’onji
- Kanigasaka
- Katada
- Kataoka
- Katayama
- Katsuno
- Kawai
- Kawamichichō
- Kido
- Kidoguchi
- Kinomoto
- Kiryū
- Kita-komatsu
- Kitaōji
- Kōkachō-aburahi
- Kōkachō-gotanda
- Kōkachō-ichino
- Kōkachō-iwamuro
- Kōkachō-jinbo
- Kōkachō-kami
- Kōkachō-kosaji