Koga is a city located in Ibaraki Prefecture, Japan. As of 1 January 2024, the city had an estimated population of 137,512 in 58,276 household…Koga is a city located in Ibaraki Prefecture, Japan. As of 1 January 2024, the city had an estimated population of 137,512 in 58,276 households and a population density of 1113 persons per km². The percentage of the population aged over 65 was 28.98%. The total area of the city is 123.58 square kilometres.
Save
Share
More