Lake Barrington is a village in Lake County, Illinois, United States. Per the 2020 census, the population was 5,100.
Geography
Lake Barrington is located on the shores of Lake Barrington, which was previously called Indian Lake.
According to the 2021 census gazetteer files, Lake Barrington has a total area of , of which (or 94.56%) is land and (or 5.44%) is water.