Mukwonago is a village in the U.S. state of Wisconsin. The population was 7,355 at the 2010 census. The village is located mostly within the Town of Mukwonago in Waukesha County, with a small portion extending into the Town of East Troy in Walworth County. Of its population, 7,254 were in Waukesha County, and 101 were in Walworth County.
The area was originally a Native American village and the tribal seat of the Bear Clan of the Potawatomi Indians. The name "Mukwonago" is derived from "mequanego" which translates to bear's den. The spelling "Mukwonago" was adopted in 1844 because of the similarity to nearby Mequon. Many of the streets and roads are named after the city's founders, such as Ira Blood, Major Jessie Meacham, Sewall Andrews, and Thomas Sugden.
Mukwonago is located at 42°51′52″N 88°19′50″W (42.864557, -88.330619).
According to the United States Census Bureau, the village has a total area of 8.11 square miles (21.00 km2), of which, 7.90 square miles (20.46 km2) of it is land and 0.21 square miles (0.54 km2) is water.
It is situated at the southwestern flank of the sprawling Vernon Marsh, and encircles Upper and Lower Phantom Lake(s). The lakes lie midway along the Mukwonago River from its source springs to its meeting with the Fox River, which travels further southeast through Big Bend and beyond.
Mukwonago has a hot summer (Köppen Dfb) humid continental climate.
At the 2010 census there were 7,355 people, 2,923 households, and 2,003 families living in the village.