It seems like many people, even some Americans fairly close to the Canadian border, are surprised to see so many Asian Canadians (in cities at least). That demographic doesn't seem to be as well known outside Canada (except for family members of Asian Canadians abroad).
Canada is 17.7% of Asian descent (not quite comparable with the definition of Asian American, since it includes those of "West Asian" (mideastern) descent but still very high by western hemisphere standards). That means about 1 out of every 5-6 Canadians (also close to the proportion that Hispanic Americans are in the US).
https://en.wikipedia.org/wiki/Asian_Canadians
Ontario, with 3.1 million Asian Canadians and British Columbia with 1.3 million (the two Canadian provinces with the largest numbers) are up there with California's over 5.5 million Asian Americans and New York state's 1.6 million (the two US states with the largest number).