Towner is a census-designated place in Kiowa County, Colorado, United States. The population as of the 2010 Census was 22. The U.S. Post Office at Sheridan Lake (ZIP Code 81071) now serves Towner postal addresses. The town was originally known as Memphis. It was a frequent attraction for Kansans when their state was "dry." This was due to the close proximity of Towner to the Kansas border.