population of long lake illinois
Long Lake, Illinois - Basic Facts. The Long Lake Census Designated Place had a population of 3,532 as of July 1, 2016. Long Lake ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.
Long Lake, Illinois. Long Lake is a census-designated place (CDP) in Lake County, Illinois, United States. The population was 3,515 at the 2010 census. Geography.