Toronto is the provincial capital of Ontario and the largest city in Canada. It is located in Southern Ontario on the northwestern shore of Lake Ontario. With over 2.5 million residents, it is the fifth most populated city in North America. Its metropolitan area has over 5 million residents is the seventh largest urban region in North America. Toronto is at the heart of the Greater Toronto Area GTA, and is part of a densely populated region in Southern Ontario known as the Golden Horseshoe, which is home to over 8.1 million residents, approximately 25% of Canada’s population. Toronto Salon Reviews and Hairdresser Ratings.