Toronto Pearson International Airport (also known as Lester B. Pearson International Airport or simply Pearson Airport) is an international airport serving Toronto, Ontario, Canada; its metropolitan area; and the Golden Horseshoe, an urban agglomeration that is home to 8.1 million people – approximately 25% of Canada's population. The airport is located 22.5 km (14.0 mi) northwest of Downtown Toronto, with the bulk of the airport lands located in the adjacent municipality of Mississauga. The airport is named in honour of the late Canadian Prime Minister and Nobel Peace Prize winner Lester Bowles Pearson.