Sea-Tac, Washington, United States [CDP]; population was 22,694 in 1990; housing units was 10,189 in 1990; location is 47°27'N 122°18'W; land area is 9.81 square miles (6,278 acres); water area is 0.17 square miles (107 acres); FIPS code is 62288 [SourceCBP]