Salem is a municipality in the Bodensee district of Baden-Württemberg in Southern Germany, located 9 km north of Lake Constance, with a population of 11,100.

Überlingen is a German city on the northern shore of Lake Constance (Bodensee) in Baden-Württemberg near the border with Switzerland. After the city of Friedrichshafen, it is the second-largest city in the Bodenseekreis (district), and a central point for the outlying communities. Since 1 January 1993, Überlingen has been categorized as a large district city.