Coming from a country much smaller than its neighbour, I know where you come from.
Keep in mind that these polls are held to help merchants target the Bitcoin crowd, and that the sample size is rather small since about 1/4th of the people who read the topic give an answer.
Canada + US is the English speaking America (with all due apologies to Quebec people).
I also lumped together the UK and Ireland (Europe's native English speakers) even though, historically, they have not always held the friendliest relationships. The same goes for other regions.