Konstanz is located on the banks of Lake Constance (the Bodensee) in southern Germany. Names Constance, Kr. Konstanz, Baden-Württemberg Konstanz, Kr. Konstanz, Baden-Württemberg Surnames Wilhelmi Source(s) Konstanz (German Wikipedia) Konstanz (Meyer's Gazetteer Online) 47.666667, 9.183333 Volga Colonies Katharinenstadt