63385 -- U.S. ZIP code Municipality (1990): WENTZVILLE, Missouri All ZIPs for this municipality (1990): 63385 Population (2000): 13931 Housing Units (2000): 5270 Land area (2000): 69.386226 sq. miles (179.709493 sq. km) Water area (2000): 0.134620 sq. miles (0.348664 sq. km) Total area (2000): 69.520846 sq. miles (180.058157 sq. km) Located within: Missouri (MO) Location: 38.808884 N, 90.859228 W