Lake Mattoon

Lake Mattoon is a 1,050 acre reservoir located in Coles County, Illinois, Cumberland County, Illinois, and Shelby County, Illinois. Almost three-quarters of the lake, 765 acre, is located in Shelby County. The reservoir was built to supply tap water to Mattoon, Illinois and Neoga, but also provides fishing and boating recreation. The lake is 4 mi long and 0.5 mi wide.

The lake is owned by the city of Mattoon. Boaters must buy a permit to use the lake. There is no power limit on the lake, which welcomes waterskiers. The lake is stocked with bass, bluegill, catfish, and crappie. The nearest Interstate access is Exit 177 on Interstate 57.

A large Reliant Energy electricity generating plant stands adjacent to the lake.