Tigard, OR -- U.S. city in Oregon Population (2000): 41223 Housing Units (2000): 17369 Land area (2000): 10.861465 sq. miles (28.131064 sq. km) Water area (2000): 0.005344 sq. miles (0.013842 sq. km) Total area (2000): 10.866809 sq. miles (28.144906 sq. km) FIPS code: 73650 Located within: Oregon (OR), FIPS 41 Location: 45.427640 N, 122.778974 W ZIP Codes (1990): 97224 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Tigard, OR Tigard