Chester Township is a township in southwestern Morris County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 7,713, a decrease of 125 (−1.6%) from the 2010 census count of 7,838, which in turn reflected an increase of 556 (+7.6%) from the 7,282 counted in the 2000 census. The township's name is derived from Chestershire in England.

Mendham Township is a township in southwestern Morris County, in the U.S. state of New Jersey, located more than 30 miles (48 km) due west of New York City. As of the 2020 United States census, the township's population was 6,016, an increase of 147 (+2.5%) from the 2010 census count of 5,869, which in turn reflected an increase of 469 (+8.7%) from the 5,400 counted in the 2000 census.