Schaumburg police said workers were cleaning the pond at Algonquin Road and Parkside Drive when they saw a body floating in the water.
Schaumburg police and fire units responded and pulled the body from the pond.
The man was wearing a dark-colored hooded coat and is possibly middle-aged, police said. His identity was not immediately known.
Detectives are conducting a death investigation.
Authorities did not immediately provide further information.
This is a developing story. Check back with ABC7 for updates.