Hakui is a city located in Ishikawa Prefecture, Japan. As of 1 February 2018, the city had an estimated population of 22,052 in 8566 households, and a population density of 270 persons per km². The total area of the city was 81.85 square kilometres (31.60 sq mi).

Ishikawa Prefecture is a prefecture of Japan located in the Chūbu region of Honshu island. Ishikawa Prefecture has a population of 1,133,294 and has a geographic area of 4,186 km2. Ishikawa Prefecture borders Toyama Prefecture to the east, Gifu Prefecture to the southeast, and Fukui Prefecture to the south.