Several hundred people were at the scene at the time of the shooting, police said.
The victims were taken to Wadley Regional Medical Center and Christus St. Michael Hospital, police said.
One 20-year-old died shortly after being admitted to hospital, police said. His name is withheld until the family is notified.
The injuries of the other nine victims are not life-threatening, police said.
The suspect allegedly fled the scene in an unknown vehicle.
“Although the motive is not yet known, a preliminary investigation shows that it may (have) been the result of some sort of disturbance among some of the party participants,” police said.