Lynden, WA -- U.S. city in Washington Population (2000): 9020 Housing Units (2000): 3592 Land area (2000): 4.083649 sq. miles (10.576601 sq. km) Water area (2000): 0.007361 sq. miles (0.019066 sq. km) Total area (2000): 4.091010 sq. miles (10.595667 sq. km) FIPS code: 40805 Located within: Washington (WA), FIPS 53 Location: 48.946606 N, 122.456927 W ZIP Codes (1990): 98264 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Lynden, WA Lynden