Get in on the madness of March and test your knowledge of the U.S. population. Play “population bracketology.”

Test your knowledge of population data! Start by choosing your geographic level: metro areas or states. Click on the name in each match-up that you think has the larger population. Green shows a correct answer, red indicates an incorrect answer. When you have opposing names picked for the next round, pick again. See how close you can come to a perfect score of 63. When you are finished, play again or mouse-over results to view the most current population estimates for each pair.

Click on the bracket above to get started! Have fun while you learn!