Lake Catherine is an unincorporated community and census-designated place (CDP) in Lake County, Illinois, United States. Per the 2020 census, the population was 1,279.
Geography
Lake Catherine is located in northwestern Lake County and is bordered to the north by Kenosha County, Wisconsin, to the east by the village of Antioch, and to the west by the community of Channel Lake. It surrounds Lake Catherine, a bay of Channel Lake, one of the Chain O'Lakes of northern Illinois.
Illinois Route 173 passes through the community, leading east through Antioch village to Zion and west to Richmond. Chicago is to the southeast, and Kenosha, Wisconsin, is to the northeast.
According to the 2021 census gazetteer files, Lake Catherine has a total area of , of which (or 62.56%) is land and (or 37.44%) is water.