Bannwaldsee

47°36′4″N 10°46′38″E / 47.60111°N 10.77722°E / 47.60111; 10.77722Primary inflowsBuchinger AchePrimary outflowsMühlberger AchCatchment area21.42 km² (8.27 sq mi)Basin countriesGermanyMax. length2.34 km (1.45 mi)Max. width1.445 km (0.898 mi)Surface area2.28 km² (0.88 sq mi)Average depth6.2 m (20 ft)Max. depth12 m (39 ft)Water volume14,090,000 m³ (498,000,000 cu ft)Residence time5.2 yearsShore length¹6.79 km (4.22 mi)Surface elevation785.9 m (2,578 ft)¹ Shore length is not a well-defined measure.

Bannwaldsee is a lake near Schwangau, Bavaria, Germany. At an elevation of 785.9 m, its surface area is 2.28 km².

• List of lakes in Bavaria

• Nixdorf, B.; et al. (2004), "Bannwaldsee", Dokumentation von Zustand und Entwicklung der wichtigsten Seen Deutschlands (in German), Berlin: Umweltbundesamt, p. 13