The Public Health Alliance of Southern California is the coalition of 10 health departments in Southern California, representing 60% of the state’s population. We envision vibrant and activated communities across California, achieving health, justice, and opportunities for all. Through the Healthy Places Index (HPI), widely regarded as the state’s premier source of health equity data, we advance health equity and racial justice. The Public Health Alliance is fiscally administered by the Public Health Institute. For more information visit https://www.thepublichealthalliance.org/.