During a BARHII meeting of Maternal and Child Health Directors in 2017, troubling stories were shared about high housing costs causing extreme and sometimes dangerous overcrowding, increased family homelessness, and reductions in money available for food and medical care. These conditions have implications for the development of the Bay Area’s youngest residents and the future economic health of the region. While this issue brief focuses on housing stability and family health in the San Francisco Bay Area, the information is salient in many communities across the country where housing costs—and housing insecurity—are rising.