Shingū is a town located in Kasuya District, Fukuoka Prefecture. As of 29 February 2024, the town had an estimated population of 33,142 in 13664 households, and a population density of 1800 persons per km². The total area of the town is 18.93 km2 (7.31 sq mi), and includes the island Ainoshima.

Fukuoka Prefecture is a prefecture of Japan located on the island of Kyūshū. Fukuoka Prefecture has a population of 5,109,323 and has a geographic area of 4,986 km2. Fukuoka Prefecture borders Saga Prefecture to the southwest, Kumamoto Prefecture to the south, and Ōita Prefecture to the southeast.