Portland Township may refer to: Canada Portland Township, now part of South Frontenac, Ontario United States Portland Township, Ashley County, Arkansas, in Ashley County, Arkansas Portland Township, Whiteside County, Illinois Portland Township, Cerro Gordo County, Iowa Portland Township, Kossuth County, Iowa Portland Township, Plymouth County, Iowa Portland Township, Michigan Portland Township, Deuel County, South Dakota, in Deuel County, South Dakota See also Portland (disambiguation) Township name disambiguation pages