06787 -- U.S. ZIP code Municipality (1990): THOMASTON, Connecticut All ZIPs for this municipality (1990): 06787 Population (2000): 8793 Housing Units (2000): 3509 Land area (2000): 18.672104 sq. miles (48.360524 sq. km) Water area (2000): 0.149061 sq. miles (0.386067 sq. km) Total area (2000): 18.821165 sq. miles (48.746591 sq. km) Located within: Connecticut (CT) Location: 41.677982 N, 73.089797 W