01344 -- U.S. ZIP code Municipality (1990): ERVING, Massachusetts All ZIPs for this municipality (1990): 01344 Population (2000): 871 Housing Units (2000): 363 Land area (2000): 13.099611 sq. miles (33.927834 sq. km) Water area (2000): 0.500618 sq. miles (1.296594 sq. km) Total area (2000): 13.600229 sq. miles (35.224428 sq. km) Located within: Massachusetts (MA) Location: 42.607051 N, 72.413965 W