Astoria, OR -- U.S. city in Oregon Population (2000): 9813 Housing Units (2000): 4858 Land area (2000): 6.142515 sq. miles (15.909041 sq. km) Water area (2000): 4.481846 sq. miles (11.607928 sq. km) Total area (2000): 10.624361 sq. miles (27.516969 sq. km) FIPS code: 03150 Located within: Oregon (OR), FIPS 41 Location: 46.188825 N, 123.821007 W ZIP Codes (1990): 97103 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Astoria, OR Astoria