Calistoga, CA -- U.S. city in California Population (2000): 5190 Housing Units (2000): 2249 Land area (2000): 2.598372 sq. miles (6.729753 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.598372 sq. miles (6.729753 sq. km) FIPS code: 09892 Located within: California (CA), FIPS 06 Location: 38.581357 N, 122.582757 W ZIP Codes (1990): 94515 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Calistoga, CA Calistoga