Drain, OR -- U.S. city in Oregon Population (2000): 1021 Housing Units (2000): 441 Land area (2000): 0.543369 sq. miles (1.407318 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.543369 sq. miles (1.407318 sq. km) FIPS code: 20500 Located within: Oregon (OR), FIPS 41 Location: 43.661647 N, 123.314808 W ZIP Codes (1990): 97435 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Drain, OR Drain