Weed, CA -- U.S. city in California Population (2000): 2978 Housing Units (2000): 1293 Land area (2000): 4.854940 sq. miles (12.574237 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 4.854940 sq. miles (12.574237 sq. km) FIPS code: 83850 Located within: California (CA), FIPS 06 Location: 41.424298 N, 122.384417 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Weed, CA Weed