A Balanced Map?

The US Census Bureau has been holding a census every decade since 1790. On the map below this data has been used to calculate the mean center of US population. According to the US Census Bureau, the mean center is

“the point at which an imaginary, flat, weightless and rigid map of the US would balance perfectly if weights of identical value were placed on it so that each weight represented the location of one person on the date of the census”.

The map below shows how the mean center has been slowly moving west and south for each census period. Click on the map to see more information.


Thanks To BagOfNothing