Northumberland is serviced by three post offices and corresponding zip codes. The southern portion of town is covered by the Schuylerville Post Office located on Ferry St. in the Village of Schuylerville. The zip code is 12871. Residents in the northern half of town are serviced from the Gansevoort Post Office located at 50 Leonard St. in the Hamlet of Gansevoort. The zip code is 12831. Our residents living in the southwestern corner of town are serviced by the Saratoga Springs post office. The zip code is 12866.
The telephone numbers are:
Saratoga Springs xxx-xxxx