Warren Township is a
township in
Somerset County,
New Jersey, United States. As of the
2010 United States Census, the township's population was 15,311, reflecting an increase of 1,052 (+7.4%) from the 14,259 counted in the
2000 Census, which had in turn increased by 3,429 (+31.7%) from the 10,830 counted in the
1990 Census.