Marshfield, MO -- U.S. city in Missouri Population (2000): 5720 Housing Units (2000): 2417 Land area (2000): 4.836237 sq. miles (12.525795 sq. km) Water area (2000): 0.002818 sq. miles (0.007298 sq. km) Total area (2000): 4.839055 sq. miles (12.533093 sq. km) FIPS code: 46388 Located within: Missouri (MO), FIPS 29 Location: 37.339599 N, 92.907230 W ZIP Codes (1990): 65706 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Marshfield, MO Marshfield