Fukui is the capital city of Fukui Prefecture, Japan. As of 1 March 2024, the city had an estimated population of 255,332 in 107,553 households. Its total area is 536.41 square kilometres (207.11 sq mi)and its population density is about 476 persons per km2. 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.

Fukui Prefecture is a prefecture of Japan located in the Chūbu region of Honshū. Fukui Prefecture has a population of 778,943 and has a geographic area of 4,190 km2. Fukui Prefecture borders Ishikawa Prefecture to the north, Gifu Prefecture to the east, Shiga Prefecture to the south, and Kyoto Prefecture to the southwest.