Town Hall Address 21 Summer St Northfield, NH 03276 United States- Merrimack County Website https://www.northfieldnh.org/ Town Clerk (603) 286-4482 https://www.northfieldnh.org/index.asp?Type=B_BASIC&SEC=%7B7B12617D-9FF3-469C-A… Mon, Thu & Fri 8:30 A.M. - 5 P.M.; Tue 8:30 A.M. - 7 P.M.; Wed 8:30 A.M. - 12:30 P.M. 21 Summer St Northfield, NH 03276 United States Tax Collector (603) 286-4482 Mon, Thu & Fri 8:30 A.M. - 5 P.M.; Tue 8:30 A.M. - 7 P.M.; Wed 8:30 A.M. - 12:30 P.M. 21 Summer St Northfield, NH 03276 United States Assessor (603) 286-7039 http://data.avitarassociates.com/logon.aspx?ReturnUrl=/ 21 Summer St Northfield, NH 03276 United States Building (603) 286-7039 inspector@northfieldnh.org 21 Summer St Northfield, 03276 United States Zoning (603) 286-7039 21 Summer St Northfield, NH 03276 United States Fire District (603) 286-8193 12 Center St Northfield, NH 03276 United States Town Hall Hours Mon - Fri 8:30 A.M. - 5 P.M. County Merrimack