Mississaugai/mss/[note 1] is a city in SouthernOntario, Canada. It lies on the shores of Lake Ontario, located in the Regional Municipality of Peel, in the western part of the Greater Toronto Area. The city has a population of 713,443 as of the Canada 2011 Census, and is Canada's sixth-most populous municipality. Initially developed as a suburb of Toronto, Mississauga's growth is attributed to its proximity to that city. It is the largest suburb in Anglo-America by population. However, as the city ran out of vacant lands, the city shifted its focus to building a full-fledged downtown core while shaping its new identity as a distinct city from Toronto. Residents of the city are called Mississaugans and Saugans. The city is placed first overall in 'mid-sized cities of the future' by financial publication fDi Magazine for North and South American cities, placing first in business friendliness, second in economic potential, and fourth in infrastructure and foreign direct investment strategy. Mississauga was also rated as Canada's 11th best city to live in terms of prosperity according to MoneySense magazine. It is the fourth most walkable large city in Canada according to Walk Score.Toronto Pearson International Airport, Canada's busiest airport is located in the city, and it is the location of several major corporate headquarters for Canada.