Schaumburg, Illinois, United States [Village]; population was 68,586 in 1990; housing units was 29,499 in 1990; location is 42°2'N 88°5'W; land area is 18.81 square miles (12,037 acres); water area is 0.16 square miles (104 acres); FIPS code is 68003 [SourceCBP]