63430 -- U.S. ZIP code Municipality (1990): ALEXANDRIA, Missouri All ZIPs for this municipality (1990): 63430 Population (2000): 662 Housing Units (2000): 297 Land area (2000): 51.293339 sq. miles (132.849132 sq. km) Water area (2000): 0.183400 sq. miles (0.475004 sq. km) Total area (2000): 51.476739 sq. miles (133.324136 sq. km) Located within: Missouri (MO) Location: 40.381613 N, 91.505982 W