Lake Hendricks is a glacial lake located on the South Dakota-Minnesota border approximately 20 miles northeast of Brookings, South Dakota. The surface area of the lake is 1,534 acres. The contributing watershed area is 31,693 acres. Approximately 80% of the watershed area is in South Dakota, and 20% of the watershed area in Minnesota. Upper Deer Creek drains the major subwatershed, and flows into the southwest end of the lake.
Beautiful Lake Hendricks offers ample opportunity for sport and relaxation. Boating, skiing and swimming are popular activities on Lake Hendricks. The quality of the lake has produced summer residents from a wide area. The size of the lake offers room for a variety of activities all year round. In summer, the lake is a popular spot for water sports and great fishing! In Winter, area residents enjoy the annual ice fishing derby and the "Winter Fun Day" activities which include cross country skiing, ice skating and sliding, sleigh rides, and ice cutting demonstrations.