Usui (碓井町, Usui-machi) was a town located in Kaho District, Fukuoka Prefecture, Japan.
As of 2003, the town had an estimated population of 6,287 and a density of 744.02 persons per km². The total area was 8.45 km².
On March 27, 2006, Usui, along with the city of Yamada, and the towns of Inatsuki and Kaho (all from Kaho District), was merged to create the city of Kama.
References
Usui, Fukuoka Wikipedia(Text) CC BY-SA