02071 -- U.S. ZIP code Municipality (1990): SOUTH WALPOLE, Massachusetts All ZIPs for this municipality (1990): 02071 Population (2000): 993 Housing Units (2000): 311 Land area (2000): 1.505417 sq. miles (3.899013 sq. km) Water area (2000): 0.012840 sq. miles (0.033255 sq. km) Total area (2000): 1.518257 sq. miles (3.932268 sq. km) Located within: Massachusetts (MA) Location: 42.101406 N, 71.272392 W