The district Is comprised of 109 cities and towns inluding Aberarder, Aberfeldy, Alvinston, Arkona, Avonry, Babys Point, Beach O'Pines, Beaver Meadow, Becher, Bentpath, Bickford, Birnam, Blackwell, Bradshaw, Brigden, Brights Grove, Bunyan, Cairo, Camlachie, Cedar Point, Charlemont, Colinville, Coronation Park, Corunna, Courtright, Cromar, Dawn Valley, Duthill, Edys Mills, Errol, Eton Court, Florence, Forest, Fourth Line, Froomfield, Glen Rae, Glendale Beach, Grand Bend, Grays, Gustin Grove, High Park, Highland Glen, Hillsborough Beach, Huffs Corners, Huron Heights, Inwood, Ipperwash Beach, Jericho, Jura, Kennedy Acres, Kertch, Kettle Point, Kimball, Kinnaird, Ladysmith, Lambton Shores, Lucasville, Mandaumin, Marthaville, Moore Centre, Mooretown, Oak Acres, Oakdale, Oakwood Corners, Oil City, Oil Springs, Osborne, Payne, Petrolia, Plympton-Wyoming, Point Edward, Port Franks, Port Lambton, Ravenswood, Reeces Corners, Rokeby, Rutherford, Sarnia, Seckerton, Sherwood Village, Shetland, Sombra, Southcott Pines, Springvale, Sutorville, Sykeston, Terminus, Thedford, Thornyhurst, Uttoxeter, Vyner, Walden Place, Walker Woods, Walnut, Walpole Island, Wanstead, Warwick, Watford, Waubuno, Wees Beach, Weidmann, West Becher, Wilkesport, Wiltshire Park, Wisbeach, Woodland, Woodrow Beach, Woodrowe Shores, Wyoming.