Welcome to the Clear Lake Museum Website.

The Cornell House

Clear Lake, population estimated at 1,300,  is the largest city and county seat of Deuel County, South Dakota.  Clear Lake was surveyed and platted in September 1884 and incorporated as a town on July 6, 1885.  First named Deuel Center because of its location near the geographic center of Deuel County, the city was renamed Clear Lake after the beautiful nearby lake.          

Click for more history.

The History of Clear Lake


Original Deuel County Court House

The Clear Lake Historical Society accepts financial contributions and donations of historical artifacts and other items of interest to the history of Clear Lake and Deuel County. Lifetime memberships are also available. Contact any board member for further information.

Contact Us

June 6th through Sept. (Not open July 4th)

Other times available by appointment

Museum open by special appointment for groups and families.  Please contact a board member for details.

Contact Us

Clear Lake Main Street 1909

Preserving a Treasure Chest of Memories

A Deuel Area


A JEM Web Design

Updated 5-30-2016