Stockton Lake is a reservoir located in southeastern Cedar County, northeastern Dade County, and southwestern Polk County, Missouri. The lake is V-shaped, and covers 39 square miles, with 298 miles of shoreline. It has three marinas, and 10 public-use areas. It has a "non-development policy," and is surrounded by unspoiled, tree-covered hills. Its banks …Stockton Lake is a reservoir located in southeastern Cedar County, northeastern Dade County, and southwestern Polk County, Missouri. The lake is V-shaped, and covers 39 square miles, with 298 miles of shoreline. It has three marinas, and 10 public-use areas. It has a "non-development policy," and is surrounded by unspoiled, tree-covered hills. Its banks are owned and operated by the Army Corps of Engineers.