Cook County records deadliest year for opioid overdoses in 2022

In 2022, there were 2,000 deaths, surpassing the previous record of 1,935 deaths in 2021. The large majority of deaths involved fentanyl, a synthetic opioid that is 50 times more potent than heroin and 100 times more potent than morphine. In 2015, there were 676 recorded deaths.