Willows, CA -- U.S. city in California Population (2000): 6220 Housing Units (2000): 2368 Land area (2000): 2.868331 sq. miles (7.428944 sq. km) Water area (2000): 0.025640 sq. miles (0.066407 sq. km) Total area (2000): 2.893971 sq. miles (7.495351 sq. km) FIPS code: 85684 Located within: California (CA), FIPS 06 Location: 39.519876 N, 122.198846 W ZIP Codes (1990): 95988 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Willows, CA Willows