Fukui is the capital city of Fukui Prefecture, Japan. As of 1 July 2018, the city had an estimated population of 264,217, and a population density of 69.2 persons per km², in 102,935 households. Its total area is 536.41 square kilometres. Most of the population lives in a small central area; the city limits include rural plains, mountainous areas, and suburban sprawl along the Route 8 bypass.