Koga, Ibaraki

Koga (古河市 Koga-shi) is a city located in Ibaraki Prefecture, in the northern Kantō region of Japan. As of September 2015, the city had an estimated population of 140,770 and a population density of 1140 persons per km². Its total area was 123.58 square kilometres (47.71 sq mi).

Koga, Ibaraki

Koga (古河市 Koga-shi) is a city located in Ibaraki Prefecture, in the northern Kantō region of Japan. As of September 2015, the city had an estimated population of 140,770 and a population density of 1140 persons per km². Its total area was 123.58 square kilometres (47.71 sq mi).