Canada's largest cities are facing a demographic crisis that threatens their long-term viability. Young families with children are leaving Toronto and Montreal in record numbers, transforming the economic landscape of the country and reshaping where Canadian children will grow up.
The numbers tell a stark story. While birth rates have remained relatively stable across Canada, the geographic distribution of young children has shifted dramatically. The Greater Toronto Area and Greater Montreal have lost approximately 35,000 children under the age of five since 2010 — a staggering reversal that is already forcing school closures and straining municipal services.
Meanwhile, Calgary, Edmonton, and Ottawa are experiencing the opposite trend, collectively gaining the equivalent number of young families that Toronto and Montreal are losing.
The Mass Exodus Accelerates
The outmigration from Canada's two largest metropolitan areas has become a flood. For the first decade of the 2000s, Toronto and Montreal combined to lose approximately 40,000 people annually to other Canadian cities. That rate doubled by 2019 and spiked further during the early pandemic. Today, net losses exceed 100,000 people per year, with the vast majority of migrants under 45 years old.
This is not a new phenomenon, but it has accelerated dramatically in recent years — a direct result of policies that have made homeownership impossible for middle-class families.
Housing Costs: The Breaking Point
Two decades ago, a young couple with dual incomes could purchase an entry-level family home in the GTA for approximately five times their combined annual income. Today, that same home costs more than 12 times household income — a threshold that pushes ownership out of reach for all but the wealthiest families.
The impact is immediate and measurable. A 2024 Ipsos poll found that nearly three-quarters of GTA residents under 35 are actively considering leaving the region to find more affordable housing. For many families, that decision translates into a move to Alberta or eastward to Ottawa.
Why Family Homes Disappeared
The housing crisis did not emerge by accident. It is the direct result of deliberate policy decisions by provincial and municipal governments to prioritize high-rise apartment and condo development over family-sized homes.
In 2003, roughly 30 per cent of all townhouse and detached home construction across Canada occurred in Toronto and Montreal, totalling 46,000 starts. By 2013, that number had collapsed to 20,000. Last year, the two metros combined for fewer than 10,000 family-sized housing starts — less than 11 per cent of Canada's national total.
Urban growth boundaries, greenbelt designations, and restrictive zoning rules prevented communities from expanding outward. Regulations eliminated gentle density options, leaving high-rise construction as the only path forward. Meanwhile, sky-high development charges and government fees made the limited family housing that was built unaffordable for middle-class households.
The Problem With High-Rise Living
High-rise apartments and condos serve an important role in housing supply. However, the economics of high-rise construction and building code requirements result in units that are fundamentally ill-suited for families with children. Small layouts, limited outdoor space, and noise concerns make these properties unsuitable for households raising young kids.
The result is inevitable: Families leave. They seek communities where they can afford detached homes with yards, quality schools, and neighbourhoods designed for children.
Alberta Emerges as the Destination
While Toronto and Montreal struggle with outmigration and school closures, Alberta cities are thriving. Calgary and Edmonton have attracted young families at scale, creating strong demand for family housing, expanding school enrolment, and building the economic foundation for sustainable growth.
This divergence is not predetermined. It reflects policy choices. Cities that prioritize diverse housing options, manage growth responsibly, and make family homeownership achievable are winning the demographic race. Those that restrict housing supply and price out the middle class are entering a doom loop of declining schools, reduced municipal revenue, and economic stagnation.
The lesson for Toronto and Montreal is sobering: Without urgent policy reform to increase family-friendly housing supply, the gap will only widen.
This article is based on reporting and analysis originally published in the Globe and Mail. Read the full story at The Globe and Mail.