Lake Acworth is a 90-acre man-made lake located southwest of the city of Acworth, Georgia. It is located in the extreme northwestern part of Cobb County. The lake impounds Proctor Creek (not the same as Proctor Creek in nearby Atlanta), and outflows into Lake Allatoona. The low dam is at the point where State Route 92 (Lake Acworth Drive) crosses. The city of Acworth operates Acworth Beach, a public beach and park along the northern shore of the lake.