Newark Valley is a town in Tioga County, New York, United States. The population was 3,946 at the 2010 census. The town is named after the city of Newark, New Jersey.
The Town of Newark Valley contains a village also named Newark Valley. The town is located in the northeast part of the county and is northwest of Binghamton, New York.
The first permanent settlers arrived around 1791. This area was called Brown's Settlement and was part of the Town of Berkshire until it was organized as the "Town of Westville" in 1823. In 1824, the town changed its name to "Newark," at the suggestion of a settler from New Jersey, but then changed the name to Newark Valley in 1862, to avoid conflict with the name of a village in Wayne County.
One of the earliest settlers was Richard Sarles (1753-1849), a native of Bedford (town), New York and a veteran of the American Revolutionary War whose descendants share a common heritage albeit with various spelling permutations (Searles, Sarles, Sarlls). The area where he settled was known as Searlestown, between Newark Valley (village), New York and Flemingville Owego, New York, and the cemetery where he and over two dozen Newark Valley relatives and descendants are buried bears that same name.
The Belcher-Holden Farm, Bement-Billings House, Blewer Farm, Daniel Chamberlain House, Morris Clinton House, Farrand-Pierson House, Lipe Farm, Maple Lawn Farm, John Settle Farm, Wade Farm, West Newark Congregational Church and Cemetery, and West Newark School House are listed on the National Register of Historic Places.