[2] It is located west of Prien, Louisiana, and south of the Israel LaFleur Bridge.

Prien Lake was historically located along the Calcasieu River.

The cutoff enabled a more efficient navigational route, and isolated Prien Lake from the direct flow of the river.

[1] The lake's designated uses, according to the Louisiana Department of Environmental Quality, are recreation, and the propagation of fish and wildlife.

Prien Lake supports both recreational and commercial fishing, and fish species include croaker, redfish, speckled trout, flounder, and black drum.