Center of Population
Each decade, after it tabulates the decennial census, the Census Bureau calculates the center of population. The National Mean Center of Population based on the 2010 Census is near Plato, Mo., an incorporated village in Texas County.
At an event, U.S. Census Bureau Director Robert Groves and Juliana Blackwell, director of the National Oceanic and Atmospheric Administration’s (NOAA) National Geodetic Survey, revealed a survey disc, commemorating the national center of population as calculated by the Census Bureau. Village Chairman Bob Biram is also pictured.
The center is determined as the place where an imaginary, flat, weightless and rigid map of the United States would balance perfectly if all residents were of identical weight.
See the center move across the country: 2010.census.gov/2010census/data/center-of-population.php