03457 -- U.S. ZIP code Municipality (1990): MUNSONVILLE, New Hampshire All ZIPs for this municipality (1990): 03457 Population (2000): 429 Housing Units (2000): 287 Land area (2000): 12.626250 sq. miles (32.701836 sq. km) Water area (2000): 0.579322 sq. miles (1.500436 sq. km) Total area (2000): 13.205572 sq. miles (34.202272 sq. km) Located within: New Hampshire (NH) Location: 43.025227 N, 72.143653 W