There is one place named Koan in South Korea.
All places in the world called "Koan".
Sinchon (14)
Sangchon (13)
Naedong (13)
Taedong (12)
Songjong (12)
Pyongchon (12)
Cholgol (12)
Changdong (12)
Yongdong (12)
Singi (12)
Saeto (11)
Tongchon (11)
Chungni (11)
Hadong (11)
Chungdong (11)
Wolchon (11)
Yangchon (11)
Haktong (11)
Songjongni (10)
Yongam (10)
Tokkol (10)
Chungsan (10)
Sadong (10)
Chungchon (10)
Wondong (10)
Sangni (10)
Songsan (10)
Sinpyong (10)
Sangdong (10)
Angol (10)