64498 -- U.S. ZIP code Municipality (1990): WESTBORO, Missouri All ZIPs for this municipality (1990): 64498 Population (2000): 407 Housing Units (2000): 192 Land area (2000): 61.725798 sq. miles (159.869076 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 61.725798 sq. miles (159.869076 sq. km) Located within: Missouri (MO) Location: 40.554988 N, 95.344187 W