There was a quiz in the New York Times (12/21/13) that gave you vocabulary questions, and then could decide where you had been raised (only in the USA, unfortunately).
The quiz is 25 questions, and can be quite accurate (or wildly inaccurate I've heard tell), depending on how carefully and thoughtfully you answer the questions.
Calculating the results at the end is SLOW, but don't give up on it.
Have fun! New York Times Quiz