Hampton is a borough in Hunterdon County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 1,438, an increase of 37 (+2.6%) from the 2010 census count of 1,401, which in turn reflected a decline of 145 (−9.4%) from the 1,546 counted in the 2000 census.