Boonton Township is a township in Morris County, New Jersey, United States. As of the 2010 United States Census, its population was 4,263, reflecting a decline of 24 (−0.6%) from 4,287 in the 2000 Census, which had in turn increased by 721 (+20.2%) from 3,566 in the 1990 Census. New Jersey Monthly magazine ranked Boonton Township as the 4th best place to live in the state in its rankings of the "New Jersey's Top Towns 2011–2012.