Black Jack, MO -- U.S. city in Missouri Population (2000): 6792 Housing Units (2000): 2587 Land area (2000): 2.660066 sq. miles (6.889540 sq. km) Water area (2000): 0.007305 sq. miles (0.018921 sq. km) Total area (2000): 2.667371 sq. miles (6.908461 sq. km) FIPS code: 06004 Located within: Missouri (MO), FIPS 29 Location: 38.790799 N, 90.261885 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Black Jack, MO Black Jack