Town Hall Address 16 Main Street Mattapoisett, MA 02739 United States- Plymouth County Website http://www.mattapoisett.net/ Town Clerk 508-758-4100 https://www.mattapoisett.net/town-clerk United States Assessor 508-758-4106 Ext. 3 https://www.mattapoisett.net/assessors Mon - Fri: 8am - 4pm 16 Main Street Mattapoisett, United States Tax Collector 508-758-4100 228 Mon-Fri: 8:00 to 4:00 16 Main Street Mattapoisett, United States Fire District 508-758-4150 United States Water 508-758-4100 United States Town Hall Hours Mon-Fri: 8:00 to 4:00 County Plymouth