Mosier, OR -- U.S. city in Oregon Population (2000): 410 Housing Units (2000): 191 Land area (2000): 0.455299 sq. miles (1.179220 sq. km) Water area (2000): 0.181996 sq. miles (0.471367 sq. km) Total area (2000): 0.637295 sq. miles (1.650587 sq. km) FIPS code: 50050 Located within: Oregon (OR), FIPS 41 Location: 45.683639 N, 121.396308 W ZIP Codes (1990): 97040 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Mosier, OR Mosier