Town Hall Address 122 NH Route 12A, Unit 1 Langdon, NH 03602 United States- Sullivan County Website http://langdonnh.org/ Town Clerk (603) 835-2389 http://langdonnh.org/Departments/town_clerk.htm langdontownclerk@gmail.com Mons 1:00 to 2:30 P.M.; Thu 4:00 P.M. - 6:30P.M.; 1st Sat 8 A.M. - 11 A.M. 122 NH Route 12A, Unit 1 Langdon, NH 03602 United States Tax Collector (603) 835-6260 langdontaxcollector@yahoo.com P.O. Box 335 Langdon, NH 03602 United States Building (603) 835-6036 441 Cheshire Turnpike Langdon, 03602 United States Zoning (603) 835-2389 78 Cheshire Turnpike Langdon, NH 03602 United States Fire District (603) 835-6692 133 Walker Hill Rd Langdon, NH 03602 United States Town Hall Hours Mon & Wed 9 A.M. - 1 P.M. County Sullivan