05494 -- U.S. ZIP code Municipality (1990): WESTFORD, Vermont All ZIPs for this municipality (1990): 05494 Population (2000): 1852 Housing Units (2000): 665 Land area (2000): 33.888943 sq. miles (87.771956 sq. km) Water area (2000): 0.034160 sq. miles (0.088473 sq. km) Total area (2000): 33.923103 sq. miles (87.860429 sq. km) Located within: Vermont (VT) Location: 44.608283 N, 73.009794 W