Hope Township is a township in Warren County in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 1,835, a decrease of 117 from the 2010 census count of 1,952, which in turn reflected an increase of 61 from the 1,891 counted in the 2000 census. The 2010 population of 1,952 reflected an all-time high sinc…Hope Township is a township in Warren County in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 1,835, a decrease of 117 from the 2010 census count of 1,952, which in turn reflected an increase of 61 from the 1,891 counted in the 2000 census. The 2010 population of 1,952 reflected an all-time high since the 1,903 recorded in the 1840 census, the first recorded population after the township was formed.