Mississauga (i/ˌmɪsɨˈsɑːɡə/ is a city in Southern Ontario located in the Regional Municipality of Peel, and in the western part of the Greater Toronto Area. With an estimated population of 734,000,Developed as a suburb of Toronto, Mississauga's growth is attributed to its proximity to that city.With five major freeways passing through the city, Mississauga offers quick access to major markets in Canada, in addition to large markets in the Northeastern and Midwestern United States. Toronto Pearson International Airport, Canada's busiest, is located in the city. Mississauga has one of the largest corporate/financial districts in Canada with major international companies having their Canadian headquarters located in the region including Hewlett-Packard, Microsoft, PepsiCo, General Electric, Siemens, Fujitsu, Walmart Canada and Intuit Canada among many other Fortune 500 companies. Square One Shopping Centre, the second-largest shopping mall of Greater Toronto Area, is also situated in Mississauga. Residents of the city are called Mississaugans.