Mountlake Terrace, Washington, United States [City]; population was 19,320 in 1990; housing units was 7,854 in 1990; location is 47°47'N 122°18'W; land area is 3.95 square miles (2,526 acres); water area is 0.11 square miles (68 acres); FIPS code is 47490 [SourceCBP]