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According to the 2021 census, Vaughan's population is 323,103. This makes Vaughan the sixth-largest city in Ontario and the 13th-largest city in Canada. The population of Vaughan has been growing rapidly in recent years, with an average annual growth rate of 5.3% between 2011 and 2021. This growth is due to a number of factors, including immigration, new housing developments, and the expansion of Vaughan's commercial and industrial sectors.