Viking Lake: Basic Facts Location County: Montgomery Nearby communities: Stanton, Villisca About the lake Lake size: 137 acres Lake depth: average: 15 ft; maximum: 40 ft. Surface area: 137 acres Listed on Iowa's impaired waters list Recreational uses: fishing, boating, swimming, camping About the watershed Watershed size: 2,171 acres Land use: Grass: 65.07% Forest: 13.64% Row Crop: 12.82% Water: 6.16% Barren: 0.12%