18.7 Percent Of US Households, 22 Million, Are Shared With Adult Family Members or Friends

From The Washington Post, "Census Bureau: Millions more Americans shared households in face of recession" by Michael A. Fletcher:

The number of adults sharing households with family members or other individuals jumped 11.4 percent between 2007 and 2010, the report said.

Overall, such living arrangements accounted for 22 million households in 2010 — or 18.7 percent of all U.S. households, compared with 17 percent in 2007.

Young adults were the most likely to double up, the report said, accounting for more than half of those who moved in with family members or friends. Between 2007 and 2010, the number of adult children who lived in their parents’ homes increased by 1.2 million to 15.8 million.

Given the the weak job market with its high job loss rate, high overall unemployment, the difficulty for college graduates to find well paying jobs, along with the collapse in the housing market with high foreclosure rates and underwater mortgages since 2007, I would have expected a much greater jump in the number of shared households than reported.