WONDER (Wide-ranging OnLine Data for Epidemiologic Research )is a collection of public health information databases from the Center for Disease Control and Prevention.
An extremely rich source of population health data from the Institute for Health Metrics and Evaluation (IHME). If you are doing anything related to the health of populations at the state, country (U.S. or other countries) or international level be sure to take a look at this source.
Provides extensive data on a wide variety of topics, such as health costs, health status, health insurance, medicare, and minority health for all 50 states.