Circa 1835, the area began to be settled and the community was originally called Hoganville, in memory of the first pioneers, the Hogan family, who were soon joined by the Gabie, Chamberlain, and Pritchard families. In 1858, the Aylwin Township was formed, followed in 1862 by the township municipality with the same name. These were named after judge and politician
Thomas Cushing Aylwin (1806–1871). Also in 1862, the local post office opened, named Kazubazua. As evidenced by Lovell's Gazetteer of 1873, the village itself also began to be popularly known as Kazubazua. In 1932, the name was changed to Kazabazua and the municipality legally took this name in 1976. It is often shortened to "Kaz" by locals. ==Demographics==