90% of the Canadian population lives within 100 miles of the US border. Most of Canada is very cold and uninhabited. So a straight up population density comparison doesn't make much sense. The meaningful measure is something like population density in inhabited areas, and that is pretty close to Euro/US density.
Comparing population densities does not seem to be very straightforward, since I'm finding contradictory information to your own. Your statcan link gives Toronto 945.4/km^2, but Wikipedia says 4334.4/km^2[0]. I'm more inclined to believe Wikipedia, since Toronto is supposed to be the 4th most populous city in North America. Wikipedia itself cites a different statcan link[1].
This would leave Toronto at #4 in your Wikipedia list if we only count the bold cities (non-bold cities are those that are part of the metropolitan area of another city). If we count by Metropolitan Area, it would be around #11 by my quick count. Otherwise it would be #74, but for comparison Boston is #51 and Chicago is #75, so I'd say it definitely registers.
> Wikipedia says 4334.4/km^2[0]. I'm more inclined to believe Wikipedia, since Toronto is supposed to be the 4th most populous city in North America. Wikipedia itself cites a different statcan link[1].
