Tracy, CA -- U.S. city in California Population (2000): 56929 Housing Units (2000): 18087 Land area (2000): 20.997250 sq. miles (54.382626 sq. km) Water area (2000): 0.000510 sq. miles (0.001320 sq. km) Total area (2000): 20.997760 sq. miles (54.383946 sq. km) FIPS code: 80238 Located within: California (CA), FIPS 06 Location: 37.737979 N, 121.433857 W ZIP Codes (1990): 95376 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Tracy, CA Tracy