Two lakes, and they are not interchangeable
Acworth sits between Lake Acworth, the small lake at the city's edge in the northwest corner of Cobb, and Lake Allatoona, the Corps of Engineers reservoir whose shoreline runs mostly through Bartow and Cherokee with a reach into Cobb near the city. Water is where casual valuation goes wrong fastest. A house with deeded frontage, a house with a view across a cove, and a house a golf cart ride from a public ramp are three different properties, and on Allatoona the shoreline itself is federal, which shapes what an owner can and cannot do at the water.
Comparable selection has to respect those distinctions, and it has to respect the county line at the same time, because a lake sale on the Bartow side is not automatically evidence for a Cobb parcel across the water.