Kanazawa is the capital of Ishikawa Prefecture in central Japan. As of 1 January 2018, the city had an estimated population of 466,029 in 203…Kanazawa is the capital of Ishikawa Prefecture in central Japan. As of 1 January 2018, the city had an estimated population of 466,029 in 203,271 households, and a population density of 990 persons per km². The total area of the city was 468.64 square kilometres.