There are 2 places named Kosaka in Japan.
All places in the world called "Kosaka".
Ono (18)
Ota (17)
Hongo (16)
Wada (15)
Minato (15)
Tomari (14)
Kawasaki (14)
Hama (14)
Ohama (14)
Nakamura (13)
Oshima (13)
Hara (13)
Nagahama (13)
Yoshida (12)
Okubo (12)
Sakai (12)
Okawa (11)
Kanayama (11)
Hirose (11)
Kawaguchi (11)
Funakoshi (11)
Shinden (11)
Seto (11)
Ichiba (10)
Ikeda (10)
Kamo (10)
Shimizu (10)
Yamada (10)
Takada (10)
Ogawa (10)