Napavine, WA -- U.S. city in Washington Population (2000): 1361 Housing Units (2000): 474 Land area (2000): 0.799431 sq. miles (2.070517 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.799431 sq. miles (2.070517 sq. km) FIPS code: 47980 Located within: Washington (WA), FIPS 53 Location: 46.579284 N, 122.910935 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Napavine, WA Napavine