Opioid overdoses accounted for 33,091 deaths in 2015, according to a CDC report released in December.
The report detailed the change in drug overdose deaths by state and calculated the increase in drug related deaths from 2014 to 2015. The data includes heroin and synthetic opioid-related deaths, excluding methadone.
Here are the 15 states with the highest percentage increase year-over-year:
1. North Dakota: 36.5 percent
2. Massachusetts: 35.3 percent
3. District of Columbia: 31 percent
4. New Hampshire: 30.9 percent
5. Maine: 26.2 percent
6. Connecticut: 25.6 percent
7. Florida: 22.7 percent
8. Ohio: 21.5 percent
9. Kentucky: 21.1 percent
10. Rhode Island: 20.5 percent
11. New York: 20.4 percent
12. Maryland: 20.1 percent
13. Pennsylvania: 20.1 percent
14. Vermont: 20.1 percent
15. Iowa: 17 percent