Healthy & Active Before 5 is a countywide collaborative advancing health equity for children under five and their families through local policy and environmental change. Founded in 2007 with a focus on early childhood health, it has since broadened into the wider conditions that shape how young children grow — including assessments of play spaces in Pittsburg and Antioch. Its Leadership Council connects more than fifty organizations across health, early education, and community services in Contra Costa County.