Greater Sudbury, Ontario, incorporated as a city in 2001, population 164,689 (2016 census), 163,067 (2011 census). The judicial seat for the District of Sudbury, the City of Greater Sudbury is located on the western shore of Ramsey Lake, about 60 km north of Georgian Bay. When incorporated in 2001, it replaced the former Regional Municipality of Sudbury (1973–2000) and City of Sudbury (1930–2000). The city owes much of its development to the mining industry, in particular the mining of nickel. The largest urban area in northeastern Ontario, Greater Sudbury now offers a concentration of business, cultural and educational services and is recognized for the impressive regreening program that it has been carrying out since the 1970s.
Halton Hills, ON, incorporated as a town in 1974, population 61,161 (2016 c), 59,013 (2011c). Halton Hills is located approximately 45 km west of Toronto and was created by the amalgamation of Acton, Georgetown and Esquesing Township. It is also encompasses several hamlets — Ballinafad, Glen Williams, Stewarttown, Limehouse, Glen Lawson, Speyside, Ashgrove, Crewson’s Corners, Bannockburn, Henderson’s Corners, Whaley’s Corners, Mansewood, Hornby, Silver Creek, Terra Cotta and Norval. From 1926 to 1935, Norval was home to Lucy Maud Montgomery, author of Anne of Green Gables.
Vaughan, ON, incorporated as a city in 1991, population 306,233 (2016 c), 288,301 (2011 c). The City of Vaughan — which includes the five constituent communities of Maple, Kleinburg, Concord, Woodbridge and part of Thornhill — is located in the York regional municipality, next to the northwest boundary of metropolitan Toronto. The city traces its name to Lieutenant-Governor John Graves Simcoe, who, in 1792, named the then township after British diplomat Benjamin Vaughan, a co-negotiator of the 1783 Treaty of Paris that ended the American Revolutionary War. Traditionally an agricultural and milling community, Vaughan’s economy diversified over the latter half of the 20th century as immigration increased and the township developed into a city. Today, Vaughan is a multicultural community with a growing metropolitan core.