63443 -- U.S. ZIP code Municipality (1990): HUNNEWELL, Missouri All ZIPs for this municipality (1990): 63443 Population (2000): 449 Housing Units (2000): 223 Land area (2000): 37.885365 sq. miles (98.122642 sq. km) Water area (2000): 0.399407 sq. miles (1.034459 sq. km) Total area (2000): 38.284772 sq. miles (99.157101 sq. km) Located within: Missouri (MO) Location: 39.677082 N, 91.858409 W