Though young children in public and mixed-income housing are exposed to some of the deepest poverty and developmental and educational risks in the United States, they are usually out of reach of many interventions that might help. Home visiting programs hold promise for helping vulnerable families, but most are not designed to fully address the needs of public and mixed-income housing residents. This brief describes important issues that program planners and early childhood leaders should consider when designing appropriate and responsive home visiting programs that reach young children in these communities.