Sundown, MO -- U.S. village in Missouri Population (2000): 38 Housing Units (2000): 25 Land area (2000): 1.072340 sq. miles (2.777347 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.072340 sq. miles (2.777347 sq. km) FIPS code: 71628 Located within: Missouri (MO), FIPS 29 Location: 36.568280 N, 92.637779 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Sundown, MO Sundown