A record 57 million Americans, or 18.1% of the population of the United States, lived in multi-generational family households in 2012, double the number who lived in such households in 1980.1
After three decades of steady but measured growth, the arrangement of having multiple generations together under one roof spiked during the Great Recession of 2007-2009 and has kept on growing in the post-recession period, albeit at a slower pace, according to a new Pew Research Center analysis of U.S. Census Bureau data.