2010 Census Shows Nation's Population is Aging
"The U.S. Census Bureau released today a 2010 Census brief on our nation's changing age and sex composition that shows the nation grew older while the male population grew faster than the female population over the last decade.

According to Age and Sex Composition: 2010 [PDF], the median age of Americans is now 37.2, with seven states recording a median age of 40 or older. The brief also shows the male population grew 9.9 percent between 2000 and 2010, while the female population grew 9.5 percent. Of the total 2010 Census population, 157.0 million people were female (50.8 percent) and 151.8 million were male (49.2 percent)..."