Pew research did a poll on how knowledgeable Americans are on their current politics. They then broke the demographics up - women, young, old, republicans, democrats.
One demographic not on the poll was Canadians.
Wanna check?
Here's the 12 question poll.
http://pewresearch.org/politicalquiz/quiz/Here's the percentage breakdown on how the Americans did on the 12 questions.

I got 12/12, but I follow this stuff, and I guessed on the Dow Jones question.
Here's the breakdown results by demographics, but the answers are there, so probably best not to cheat, if you're going to do the quiz.
http://pewresearch.org/pubs/1478/