National Health Interview Survey This site provides data, documentation, questionnaires, input programs, and publications based on the survey for 10 years, including many supplements. Most of these and older years are also available from ICPSR.
Center for Population Health and Health Disparities Associated with the RAND Corporation, the CPHHD Data Core compiles a large number of health-related measures. These data focus on population and housing characteristics (largely drawn from the U.S. Census), the aging population, cost-of-living variables, pollution, and neighborhood "connectivity."
Health and Medical Care Archive Includes data related to healthcare personnel and staffing, healthcare delivery, chronic illness, and access to healthcare services.
State Health Facts State comparisons of health status, poverty, insurance coverage, topics in minority and women's health, HIV/AIDS, care costs, and Medicare/Medicaid issues. Most data for the current year only.
Disability Statistics Up-to-date disability statistics and reports based on Census data. Flexible search, extraction, and display features.
Centers for Medicare and Medicaid Services Links to cost and service utilization data related to Medicare and Medicaid programs. Many tables down to the county level.
Substance Abuse and Mental Health Data Archive SAMHDA provides tools to access and use research data and is supported by the U.S. Department of Health and Human Services.
Consortium for International Earth Science Information Network (CIESIN) Demographic and environmental datasets. Click through to the Socioeconomic Data and Applications Center (SEDAC) for data on environment quality, sustainability, and human-environment interaction.
EPA Developer Central Data Finder Access to environmental data organized by subject.
National Climatic Data Center (NCDC) Data related to climate and historical weather trends and events.
NY State Department of Health - Statistics and Data Wide variety of compiled data on vital statistics, accidents and injuries, nutrition, health care services, and other public health topics.
Community Health Assessment Clearinghouse Statistics on population, perinatal health, mortality, causes of hospitalization, and disease morbidity.
NY State Office of Mental Health - Statistics and Data County and state-level tables on client characteristics, funding by program type, psychiatric center admissions.