The Genesee Theatre is a concert and performing arts venue in Waukegan, Illinois. Opened in 1927, this historic venue hosted vaudevillian theater and movies. Today, the venue has 2,403 seats and one of the largest stages in the Midwest. The Genesee is the premier entertainment venue in Lake County, IL, hosting a variety of acts including comedy, theatre, music, as well as weddings and other private events.