Charted: Multigenerational households in Philadelphia County

Multigenerational households — three or more generations under one roof — are on the rise in the U.S.

By the numbers: The share of multigenerational households in Philadelphia County is 11% — the highest in the state.

The big picture: Financial concerns and caregiving needs are two of the major reasons people live with their parents (and parents' parents.)

• There were 6 million multigenerational households in the U.S. in 2020, up from 5.1 million in 2010, according to census data.

Zoom out: Half of the top 10 counties with the highest share of multigenerational households are in South Dakota.

The intrigue: Living close to family or friends can improve your health and happiness.