East Amwell Township is a township in Hunterdon County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 3,917, a decrease of 96 (−2.4%) from the 2010 census count of 4,013, which in turn reflected a decline of 442 (−9.9%) from the 4,455 counted in the 2000 census.
East Amwell Township is located in the southeastern corner of Hunterdon County where it borders both Somerset and Mercer counties, within the heart of the Amwell Valley and Raritan Valley regions. It includes the unincorporated community of Ringoes, the oldest known settlement in Hunterdon County, as well as the communities of Larison's Corner, Weert's Corner and part of Reaville.
Amwell Township was established by a royal patent from Queen Anne in 1708. Its territory comprised and included present day Delaware Township, Raritan Township, Readington Township, East Amwell Township and West Amwell