Town of Northumberland Share: Government Town of Northumberland Visit Website Request Info P.O. Box 128 Gansevoort, NY 12831 (518) 792-9179 (518) 792-9203 (fax) http://www.townofnorthumberland.org Rep Info Map Whom to Contact Willard Peck, Supervisor What's Nearby? Distance: 5 10 15 20 25 50 mi.