Ringoes is an unincorporated community and census-designated place (CDP) located within East Amwell Township in Hunterdon County, in the U.S. state of New Jersey. The community is served by the United States Postal Service as ZIP Code 08551 and as of the 2020 United States census, the CDP's population was 849.

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.