Grand Manan is a geographic parish in Charlotte County, New Brunswick, Canada, comprising one village and part of a rural district; the rural district portion was formerly a local service district ; both of which are members of the Southwest New Brunswick Service Commission. The parish includes Grand Manan Island and numerous lesser islands, only one of which …Grand Manan is a geographic parish in Charlotte County, New Brunswick, Canada, comprising one village and part of a rural district; the rural district portion was formerly a local service district ; both of which are members of the Southwest New Brunswick Service Commission. The parish includes Grand Manan Island and numerous lesser islands, only one of which has permanent year-round inhabitants.