Lac La Belle is a village located mostly in Waukesha County in the U.S. state of Wisconsin. The population was 290 at the 2010 census. Of this, 289 were in Waukesha County, and one person was in Jefferson County. The village is located mostly within the town of Oconomowoc in Waukesha County. On March 28, 2002, the village annexed a portion of land in the town of Ixonia in Jefferson County.GeographyLac La Belle is located at in the "Lake Country" area of Waukesha County.According to the United States Census Bureau, the village has a total area of 0.98sqmi, all land.Demographics2010 censusAs of the census of 2010, there were 290 people, 115 households, and 97 families residing in the village. The population density was 295.9PD/sqmi. There were 135 housing units at an average density of 137.8/sqmi. The racial makeup of the village was 98.6% White, 0.3% Asian, 0.3% from other races, and 0.7% from two or more races. Hispanic or Latino of any race were 0.3% of the population.There were 115 households of which 25.2% had children under the age of 18 living with them, 80.0% were married couples living together, 4.3% had a female householder with no husband present, and 15.7% were non-families. 13.0% of all households were made up of individuals and 9.6% had someone living alone who was 65 years of age or older. The average household size was 2.52 and the average family size was 2.77.
