This interactive map depicts the number of unintentional opioid overdose deaths that took place in Essex County from 2000 to 2014. Use the sliding scale on the top left side to select a year. Check or uncheck the boxes next to each city and town's name to filter your results. In this map, "opioid" refers to heroin, opioid-based prescription painkillers (such as OxyContin), and other unspecified opiates. Data for 2014 is from January to September only.

Source: Massachusetts Department of Public Health