All publicly available county reports are listed below and contain the full array of questions asked on the IYS. For a snapshot of substance use for Illinois counties, see our 2020 IYS County Snapshot.
All publicly available county reports are listed below and contain the full array of questions asked on the IYS. For a snapshot of substance use for all Illinois counties, see our 2018 IYS County Snapshot.
For prior year reports, visit our archives.