64453 -- U.S. ZIP code Municipality (1990): GENTRY, Missouri All ZIPs for this municipality (1990): 64453 Population (2000): 246 Housing Units (2000): 115 Land area (2000): 37.950133 sq. miles (98.290390 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 37.950133 sq. miles (98.290390 sq. km) Located within: Missouri (MO) Location: 40.338160 N, 94.449851 W