Town Hall Address 1021 NH Route 118 Dorchester, NH 03266 United States- Grafton County Website http://www.townofdorchester.net/ Town Clerk (603) 786-9476 TCTC.Dorchester@gmail.com Mon 9 A.M. - 11 A.M.; Wed 3 P.M. - 6 P.M.; last Sat of the month 9 A.M. - 11 A.M. 1021 NH Route 118 Dorchester, NH 03266 United States Tax Collector (603) 786-9476 TCTC.Dorchester@gmail.com Mon 9 A.M. - 11 A.M.; Wed 3 P.M. - 6 P.M.; last Sat of the month 9 A.M. - 11 A.M. 1021 NH Route 118 Dorchester, NH 03266 United States Assessor (603) 798-4419 http://data.avitarassociates.com/ selectmen@townofdorchester.net 150 Suncook Valley Highway Chichester, NH 03258 United States Town Hall Hours Mon, Every other Wed. & Every other Fri. 8 a.m - 2 P.M., Tue. & Thurs. 9 A.M. - 2 P.M. County Grafton