Its boundaries were created in 2002 in respect to “the long established name.”[1] Its western boundary is formed by the West End Highway in the north and by the Sanderson Fire Access Track in the south.[1]
Land use within the locality is divided largely between agriculture and conservation. The former land use includes land adjoining the coastline which has additional statutory constraints to “conserve the natural features of the coast.” The latter land use including two portions of the Flinders Chase National Park with one being located in the west and the other in the north, and an area of land in the locality's south-east corner being occupied by the Cape Bouguer Wilderness Protection Area and the Kelly Hill Conservation Park.[1][10][11]
^For the 2011 census, the ‘State Suburb of Vivonne Bay’ consisted of the localities of Cape Borda, De Mole River, Duncan, Flinders Chase, Gosse, Karatta, Middle River, Newland, Stun’sail Boom, Vivonne Bay and Western River.