Web. The local housing crisis also has been compounded by the pace of London’s growth in recent years, said Don Kerr, a demographer and professor at King’s University College. London was Ontario’s fastest-growing community between 2016 and 2021, its population expanding by a whopping 10 per cent. List of prices in London, Ontario (Canada) for food, housing, transportation, going out, and more on Sep 2022. Compare the Cost of Living in London, Ontario with any other city in the world. ... Summary of cost of living in London, Ontario. Family of four estimated monthly costs: C$5,063; Single person estimated monthly costs: C$2,681; WARNING.