03841 -- U.S. ZIP code Municipality (1990): HAMPSTEAD, New Hampshire All ZIPs for this municipality (1990): 03841 Population (2000): 6276 Housing Units (2000): 2470 Land area (2000): 11.265611 sq. miles (29.177798 sq. km) Water area (2000): 0.689002 sq. miles (1.784506 sq. km) Total area (2000): 11.954613 sq. miles (30.962304 sq. km) Located within: New Hampshire (NH) Location: 42.880837 N, 71.182526 W