We took a major roadtrip to western Canada 20 years ago. When I crossed from Alberta into Montana to return home to Ontario via the more direct American route, I told a baffled girl in a service centre that I was driving south to Canada. She couldn't understand. In point of fact there are a lot of Canadians who would have trouble with this concept. To be fair, I had to drive a long way east before heading south through northern Michigan into southern Ontario.
In a short and informative 10 minutes, this video will share a lot about the population geography of Canada. I taught Canadian geography for many years, so I know most of what the video covers, but even I didn't know that more Americans than Canadians live north of Canada's most southerly point of land, which happens to be the tiny Middle Island in Lake Erie. If that seems baffling to you, take a look.
I hope I have piqued your interest. Enjoy.