Tewksbury Township is a township located in Hunterdon County, in the U.S. state of New Jersey and is located within the New York Metropolitan Area. As of the 2020 United States census, the township's population was 5,870, a decrease of 123 (−2.1%) from the 2010 census count of 5,993, which in turn reflected an increase of 452 (+8.2%) from the 5,541 counted in the 2000 census. It is located within the Raritan Valley region. The township has been one of the state's highest-income communities. Based on data from the 2012–2016 American Community Survey (ACS), NJ.com ranked the township as having the fifth-highest income in the state, with a median household income of $173,473. Based on data from the 2014–2018 ACS, the township residents had a median household income of $162,037, more than double the statewide median of $79,363. The township's name is thought to be from Tewkesbury, England. Since 2003, the two communities have been twinned. From Wikipedia
