According to the United States Census Bureau, the city has a total area of 96.80 square miles (250.71 km), of which, 96.12 square miles (248.95 km) is land and 0.68 square miles (1.76 km) is water. The city is overwhelmingly (99.89% of its area) in Milwaukee County, but there are two tiny unpopulated parts of it that extend into neighboring counties. The part in Washington County is bordered by the southeast corner of Germantown, while the part in Waukesha County is bordered by the southeast corner of Menomonee Falls, north of the village of Butler. Both were annexations done for industrial concerns, with the Waukesha County portion containing a Cargill plant for Ambrosia Chocolate, and the Washington County portion containing a Waste Management facility.