Dmitriy T.M. sent us a link to some images at the Brookings Institution, based on analysis by William Frey, illustrating the very uneven changes in average of of the population by state in the U.S. Overall, the U.S. population is aging, with rapid growth in the population over age 55 and individuals over age 45 surpassing those aged 18-44, according to the 2010 Census  
 
The traditional family is now the preserve of a minority