Koga is located in Fukuoka-shi city, Japan at the 33.7333, 130.4667 coordinates. Distance from Koga to other cities. are listed below, click on the city name to find distance between. Distance from Koga to Kitakyushu 36 km, to Kurume 47 km, to Omuta 78 km. The green marker indicates the location of Koga.