The 21st Century Cities Initiative (21CC) at Johns Hopkins University is committed to understanding and solving economic, health, education, safety, and housing inequities that many cities are struggling to address. Bringing together diverse stakeholders, performing applied research and providing policymakers and practitioners with problem-solving ideas and tools, 21CC supports cities committed to opportunity, inclusion and innovation. Our goal is to help cities transform neighborhoods and communities so that all urban residents can thrive in the 21st century.