Lake Hallwil Hallwilersee
Lake Hallwil in the canton of Aargau
Location	Aargau
Coordinates	47°17′N 8°12′E / 47.283°N 8.200°E / 47.283; 8.200
Primary inflows	Aabach
Primary outflows	Aabach
Catchment area	128 km²
Basin countries	Switzerland
Max. length	8.4 km
Max. width	1.5 km
Surface area	10.3 km²
Average depth	28 m
Max. depth	48 m
Water volume	0.285 km³
Residence time	3.9 years
Surface elevation	449 m
Settlements	Beinwil am See, Meisterschwanden, Seengen

Lake Hallwil (German: Hallwilersee) is a lake in the Canton of Aargau, Switzerland. Its surface maximum depth is 48 meters.

Wikimedia Commons has media related to Lake Hallwil.

• Waterlevels of Lake Hallwil Archived 2007-06-14 at the Wayback Machine at Meisterschwanden

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