Brampton is a city in the Canadian province of Ontario, and the regional seat of the Regional Municipality of Peel. It is part of the Greater Toronto Area (GTA) and is a lower-tier municipality within the Peel Region. The city has a population of 656,480 as of the 2021 Census, making it the ninth most populous municipality in Canada and the third most populous city in the Greater Golden Horseshoe urban area, behind Toronto and Mississauga. The City of Brampton is bordered by Vaughan to the east, Halton Hills to the west, Caledon to the north, Mississauga to the south, and Etobicoke (Toronto) to the southeast.