U.S. Centers for Disease Control and Prevention, opioid overdose information for patients, doctors, health care providers and public officials

U.S. Centers for Disease Control and Prevention, data page, including state-level numbers on deaths and other trends from prescription drugs, heroin and non-pharmaceutical fentanyl

U.S. Centers for Medicare and Medicaid Service, opioid prescribing mapping tool that shows geographic comparisons, at the state, county, and ZIP code levels, of de-identified Medicare Part D opioid prescription claims

U.S. Department of Health and Human Services, data and statistics on opioids epidemic

Drug overdose deaths data compiled at the local level by County Health Rankings, a project of the Robert Wood Johnson Foundation and the University of Wisconsin Population Health Institute