Police said Monday that the body is that of 22-year-old Khristopher Holbrook. They said his family recently reported him missing.
Police said an autopsy shows that Holbrook drowned, and investigators are trying to learn more about the circumstances of his death.
Kent County Sheriff's divers pulled the body from the river Sunday after it was spotted by anglers.
Police ask anyone with possible information on the death of Khristopher Holbrook to call 616-456-3604 or 616-774-2340, or to contact Silent Observer.