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is a city in Waukesha County, Wisconsin. The population was 11,783 at the 2000 census. The city was incorporated from what was formerly the
. The Village of Pewaukee, which was incorporated out of the town before it incorporated as a city, is surrounded by the city.
The name of the city comes from "Pee-wauk-ee-wee-nick," meaning either "the dusty water" or "lake of shells" in Potawatomi.
Pewaukee is located at (43.061408, -88.249484). It is located in the
According to the United States Census Bureau, the city has a total area of 23.2 square miles (60.1 km²), where 21.8 square miles (56.4 km²) of it is land and 1.5 square miles (3.8 km²) of it (6.24%) is water.