Family households consisting of three or more generations, or “multigenerational households,” have become increasingly popular in the 21st century. According to the most recent Census, approximately 4.4 million American homes had three generations or more living under one roof in 2010, a 15 percent increase from two years earlier. This is 5.6 percent of the total of 76.4 million U.S. households with more than one person.
There are many reasons for this trend. The recession caused many adult children to return home after college, either because they weren’t able to get jobs that would cover rent, or they wanted to save up to buy homes of their own. According to Pew Institute research, the share of the U.S. population aged 18 to 31 living in their parent’s home increased to 36 percent or a record 21.6 million young adults in 2012.
For many ethnic and immigrant groups, multiple generations of a family living together is a common cultural custom.