01583 -- U.S. ZIP code Municipality (1990): WEST BOYLSTON, Massachusetts All ZIPs for this municipality (1990): 01583 Population (2000): 6226 Housing Units (2000): 2436 Land area (2000): 13.255519 sq. miles (34.331634 sq. km) Water area (2000): 0.288808 sq. miles (0.748010 sq. km) Total area (2000): 13.544327 sq. miles (35.079644 sq. km) Located within: Massachusetts (MA) Location: 42.359842 N, 71.787001 W