The Cascadia Megaregion: Facts and Figures

Here in the Cascadia Corridor – from Vancouver and Victoria, B.C. to Eugene, Oregon – we share many things: geography, climate, similar economies, an appreciation of the environment, and a Pacific-oriented international outlook. We also face common challenges posed by urbanization and the movement of people and goods along the corridor.

The Cascadia mega-region, which stretches up from Portland, Oregon through Seattle and into Vancouver, Canada, is home to nearly 10 million people. It generates economic output of about $600 billion, comparable to Switzerland, also placing it among the world’s top 25 nations.

The Salish Sea and Cascadia Megaregion Corridor at night by Satellite.

The area from Vancouver B.C. down to Portland has been termed an emerging megaregion by the National Committee for America 2050, a coalition of regional planners, scholars, and policy-makers as well as the Canadian and US governments. A megaregion is defined as an area where "boundaries begin to blur, creating a new scale of geography". These areas have interlocking economic systems, shared natural resources and ecosystems, and common transportation systems link these population centers together. This area contains 17% of Cascadian land mass, but more than 80% of the Cascadian population.

This idea of Cascadia as an economic cross-border region has been embraced by a wide diversity of civic leaders and organizations. The "Main Street Cascadia" transportation corridor concept was formed by former mayor of Seattle Paul Schell during 1991 and 1992.Schell later defended his cross-border efforts during the 1999 American Planning Association convention, saying "that Cascadia represents better than states, countries and cities the cultural and geographical realities of the corridor from Eugene to Vancouver, B.C." Schell also formed the Cascadia Mayors Council, bringing together mayors from cities along the corridor from Whistler, BC, to Medford, Oregon. The council last met in May, 2004.

Cascadia exhibits binational and regional cooperation, governing bodies as well as cross-border NGOs. These ties continue to be strengthened through initiatives such as the establishment of a cross-border state ID card in 2006, the 'Pacific Coast Collaboration' agreement (PCC) signed by the governors of California, Oregon, Washington and Alaska and the premier of British Columbia in 2008, the bioregional 'Cascadia Mayors Council' founded in 1996 and the establishment of the Pacific Northwest Economic Region in 1991, a regional U.S.-Canadian forum in which all legislative members and governors are voting members, along with a consortium of the regions most powerful non-profit, public and private sector companies.

PNWER is recognized by both the United States and Canada as the “model” for regional and bi-national cooperation that provides the public and private sectors a cross-border forum that legal scholar Andrew Petter, a former BC cabinet minister and President of Simon Fraser University,describes as one of North America's most sophisticated examples of "regionalist paradiplomacy".PNWER is the only statutory, non-partisan, bi-national, public/private partnership in North America.

Other cross-border groups were set up in the 1990s, such as the Cascadia Economic Council and the Cascadia Corridor Commission.The region is served by several cooperative organizations and interstate or international agencies, especially since 2008 with the signing of the Pacific Coast Collaborative which places new emphasis on bio-regionally coordinated policies on the environmental, forestry and fishery management, 
emergency preparedness and critical infrastructure, regional high speed rail and road transportation as well as tourism.

At night, satellite images show a string of near-constant light along the cities of the U.S. East Coast. Urban growth and sprawl have created a map where Washington blends into Baltimore, and on through Philadelphia, Trenton, New York, Hartford, Providence, and Boston. North America’s dozen mega-regions account for 243 metropolitan areas in the U.S. and Canada, including more than 60 percent of all U.S. metros. These dozen regions have a combined population of more than 230 million people, including 215 million from the United States, or 70 percent of the U.S. population. (So-Cal, Cascadia, and Tor-Buff-Chester include parts of Mexico and Canada).


The vision for Cascadia links Seattle, Portland, and Vancouver, British Columbia with high-speed rail, while protecting the area's unique and pristine environment.  Other strategies highlight these cities' shared high-tech competencies, commitment to environmental sustainability, and creative clusters in film, music, and green building.

Principal Cities: Portland, Seattle, Vancouver
Population 2010 (U.S. Portion): 8,367,519

Percent of U.S. Population: 3%
Population 2025: 8,748,143

Population 2050: 11,864,378

Projected Growth (2010 - 2050): 41.8% (3,496,859)


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