63050 -- U.S. ZIP code Municipality (1990): HILLSBORO, Missouri All ZIPs for this municipality (1990): 63050 Population (2000): 13206 Housing Units (2000): 5042 Land area (2000): 91.831800 sq. miles (237.843260 sq. km) Water area (2000): 0.628830 sq. miles (1.628662 sq. km) Total area (2000): 92.460630 sq. miles (239.471922 sq. km) Located within: Missouri (MO) Location: 38.259946 N, 90.566603 W