The 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, British Columbia, to
Medford, Oregon. The last meeting was held in May 2004. Other cross-border groups were set up in the 1990s, such as the Cascadia Economic Council and the Cascadia Corridor Commission. as claimed by the United States. The
Columbia District extended much farther north. 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. 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. This group defines a megaregion as an area where "boundaries [between metropolitan regions] 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 percent of Cascadian land mass, but more than 80 percent of the Cascadian population. Programs such as the
enhanced driver's license program can be used to more easily cross the border between Washington and British Columbia.
Polling Canada In
British Columbia, a 2020 poll conducted by
Glacier Media and Research Co. found significant growth of support for Cascadia and British Columbia as a standalone, independent country. As a standalone country, support increased to 27 percent from 17 percent in 2018 and 2019. British Columbians aged 18 to 34 were more likely to feel that the province could be independent (37% support) than those aged 35 to 54 (28%) and those aged 55 and over (18%). As of 2020, British Columbians identify more with the Cascadia region than Canada seeing "more in common", and identification with Cascadia is particularly strong in younger generations — 66% age 18 to 34, 60% age 35 to 54, and 48% 55 and older. A poll commissioned by the
Western Standard magazine in 2005 asked whether "western Canadians should begin to explore the idea of forming their own country", and 35.6 percent of respondents from
Western Canada agreed.
Angus Reid conducted a four-part study on Western Canadian identity and surveyed 4,024 Canadians in late December and early January 2017 and 2018. It showed that 54 percent of British Columbians felt they had the most in common with Washington state, and 18 percent picked California. In comparison, just 15 percent chose Alberta, 9 percent chose Ontario, and less than 3 percent chose Manitoba, Saskatchewan, or another Canadian area. This connection, while not new, has steadily continued to grow. (In 1991, half of BC respondents told the Angus Reid Group they had the most in common with Washington.) In 1991, there was a greater degree of mutual recognition between British Columbia, Alberta, and other parts of Canada. In January 2025,
Elizabeth May, a Canadian Member of Parliament for the
Green Party of Canada, referenced the Cascadia movement and related academic research in response to U.S. President
Donald Trump's remarks proposing the acquisition of Canada as the
51st state.
United States While it is difficult to gauge support for Cascadia specifically in Washington and Oregon, because no research has been done for those states, support for secession is at one of its highest points in the history of the United States as of 2021. In 2021, a study was conducted by Brightline Watch of 2,750 Americans between June 16 and June 26 that asked, "Would you support or oppose (your state) seceding from the United States to join a new union (list of five regional unions)?" The poll found that support for regional secession was highest in the Pacific and Southern regions, with 66 percent of
Republicans, 50 percent of independents in the South, and 47 percent of Democrats in the Pacific supporting secession. In this survey, Brightline used the regional union of Washington, Oregon, Alaska, Hawaii, and California as the Pacific regional union. Overall, support for secession was 37 percent in the US in general. In a 2022 poll, the
University of Virginia Center for Politics found similar results, determining that 52 percent of Trump voters and 41 percent of
Biden voters at least somewhat agreed that "it's time to split the country, favoring blue/red states seceding from the union". This builds on earlier research conducted by Zogby International in 2018, which found that 39 percent of Americans support the idea of independence. Additionally, 68 percent of people expressed openness to a state's or region's right to peacefully secede from the United States, marking the highest rate since the American Civil War. This number included 41 percent of Democrats, with the largest demographic supporting the idea being Black Americans at 47 percent, replacing the previous current highest bloc (which had been Latinos 51% in 2017), and followed by Republicans at 39 percent. However, none of these studies is specifically about forming an independent Cascadia. The movement saw much discussion in the 1990s, ==In popular culture==