Round Lake Beach, Illinois, United States [Village]; population was 16,434 in 1990; housing units was 5,041 in 1990; location is 42°23'N 88°5'W; land area is 3.94 square miles (2,522 acres); water area is 0.02 square miles (15 acres); FIPS code is 66040 [SourceCBP]
