Town Hall Address 888 Washington St Stewartstown, NH 03597 United States- Coos County Town Clerk (603) 246-8690 P.O. Box 119 West Stewartstown, NH 03597 United States Tax Collector (603) 246-8690 P.O. Box 119 West Stewartstown, NH 03597 United States Assessor http://data.avitarassociates.com/logon.aspx?ReturnUrl=/ United States Water (603) 246-3089 P.O. Box 322 West Stewartstown, NH 03597 United States Town Hall Hours Mon, Wed, Thu & Fri 9 A.M. - 4 P.M.; Tue 9 A.M. - 2 P.M. County Coos