The object of this quiz is to click on the circle containing the largest population. When you begin you'll be shown 2 circles on the map with radii between 10 and 250 miles which do not intersect. Click on the one with the larger population within it (based on US census tract info) then 'Submit' - if you are correct you'll move on. One incorrect round and the quiz is over. Every 5 rounds the number of circles on the map will increase by 1. Try to build the longest streak of correct circles. Circles displayed will always be non-intersecting.
NOTE: You may have to zoom out to see all circles, occasionally a AK/HI circle will be included. Also, only population within the US is included in the total, any Canada/Mexico coverage counts as 0 population within the circle.
Quiz Takers 
Love this! I am enjoying a lot of your quizzes, but this one is now my favorite.
Unless the image seems to be very obvious right off the bat, I almost automatically guess CA, IL, IN, NJ, NY. Half the time it seems like it’s one of those 5 states.
Another fantastic quiz. There is a lot of benefit in guessing CA and NJ before you know which state it is. 😀
This is so much fun! Is there any chance you’ll be adding more cities to this? I’ve played a few times now and am getting a lot of repeats.
hmm there are a few thousand cities it can choose from each time you play. are there certain specific cities you are seeing a lot?
Sorry, I guess I meant that I am seeing a lot of NJ and IL. I am seeing a few cities a few times but I don’t remember which ones they are. Sorry to be a bother!
oh most likely due to them having lots of 5k cities 🙂
alright, thanks!
ah, here’s one I’ve gotten 4 or 5 times: Bath, NY
This is an awesome one, I could do this all day!
go crazy! 🙂
This one was fun! One of them was a town a couple hours from me that I got pretty fast.
yes I have all labels on for this quiz – so you may get lucky seeing the state name in a place’s label. but it seemed more fun this way and too difficult to get anything quickly without labels.