63951 -- U.S. ZIP code Municipality (1990): LOWNDES, Missouri All ZIPs for this municipality (1990): 63951 Population (2000): 394 Housing Units (2000): 223 Land area (2000): 41.889774 sq. miles (108.494013 sq. km) Water area (2000): 0.187262 sq. miles (0.485007 sq. km) Total area (2000): 42.077036 sq. miles (108.979020 sq. km) Located within: Missouri (MO) Location: 37.124019 N, 90.272470 W