More kids live in 3-generation homes than ever before

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More children in the United States than ever before live in multigenerational households, according to a new study.

In 1996, about 5.7 percent of kids, or roughly 4 million, lived in multigenerational families. Twenty years later, the numbers are 9.8 percent, or about 7 million children.

“It’s important to understand family change because research shows strong links between children’s living arrangements, economic well-being, and long-term child outcomes,” says Natasha Pilkauskas, assistant professor at the University of Michigan Ford School of Public Policy and lead author of the paper, which will appear in the journal Demography.

“We need to know who kids are living with, as the effectiveness of policies and interventions are more likely affected by who is in the household.”

Shared living

Families usually form multigenerational households, also known as a three-generation household, when a new child is born, economic resources are scarce, someone has a health need, or because of cultural preferences.

Researchers wanted to understand which kind of shared living arrangements—where kids are living with additional adults who are not their parents or a parent’s partner—have become more common over time. The only type of shared living arrangement that increased over the last 20 years was multigenerational households, according to the study.

The researchers also looked at the various factors that contributed to the increase in multigenerational households and found that:

  • Although multigenerational families are far more common among economically disadvantaged groups, like young or poor mothers, the fastest increase in a three-generation household happened among economically advantaged groups—older, wealthier, and more educated mothers.
  • Changes in the racial/ethnic makeup of the population explained some of the increase in multigenerational households. The increase in the number of children who are Hispanic or “other” and the decrease in the number of kids who are white also led to an increase in co-residence.
  • Parent’s relationship status was another explanatory factor in the increase in three-generation co-residence, which included a decline in marriage and an increase in single parenthood.
  • An increase in the share of the population receiving Social Security benefits also strongly explained the increase. Children and grandchildren may move in with grandparents receiving Social Security if grandparents are more economically stable.


The study, however, did not show an increase in children living solely with grandparents—in contradiction to some reports about the increase in kids being raised in “grandfamilies.” The share of children in grandfamilies edged slightly upward from 1.8 percent of children in 1996 to 1.9 percent of children in 2016.

“More work needs to be done to fully understand how policy and population change are contributing to the increase in multigenerational households and whether increasing multigenerational co-residence is a good thing for families,” Pilkauskas says.

The study used data from the 1996-2008 panels of the Survey of Income and Program Participation, as well as the American Community Survey (2009-2016), a nationally representative survey of the US population that samples approximately 3 million households annually and the US Census Bureau collects.

Source: University of Michigan