The township is situated in the southernmost part of Morris County bordering both Somerset and Union counties. It is bounded by the Passaic River to the south and west and to the north by the Great Swamp National Wildlife Refuge which covers 7,455 acres (3,017 ha) of land overseen by the United States Fish and Wildlife Service.[22] Refuge lands also lie within neighboring Chatham and Harding townships.

Upper Penns Neck Township was formed on July 10, 1721, when Penn’s Neck Township was subdivided and Lower Penns Neck Township (now Pennsville Township) was also formed. The township was incorporated by an act of the New Jersey Legislature on February 21, 1798, as one of New Jersey’s original group of 104 townships.[21] Portions of the township were taken to form Oldmans Township (February 7, 1881) and Penns Grove borough (March 8, 1894).[21] The township was renamed Carneys Point Township based on the results of a Township meeting held on November 10, 1976, after voters approved a referendum held eight days earlier.[22]

The area that was to become Audubon was initially settled in the late 17th Century by various land owners and was primarily used for farms and mills. In 1695 the land now known as the Borough of Audubon was part of Newton Township. By the early 1700s, the area’s first families were building their homesteads. Today, two of these original farmhouses remain in Audubon. The Low-Stokes-Nicholson house was built c. 1732 by John Low. Simon Breach built his home, known locally as “The Mansion House”, in about 1740. A large addition was built by shipbuilder John Dialogue in c. 1853. Samuel Nicholson Rhodes, a local naturalist and author, owned this farm, which he named “Cedarcroft”, from 1898–1912.[19] It was Mrs. Rhodes who came up with the name for the town. When the Atlantic City Railroad arrived in the 1880s the local farms were subdivided into the smaller communities of Audubon, Cedarcroft and Orston. Residential development began when both Audubon and Orston had train stations built in the 1890s.

What is now Lopatcong Township was created as Phillipsburg Township on March 7, 1851, by an act approved by the New Jersey Legislature from portions of Greenwich Township and Harmony Township. After Phillipsburg was incorporated as an independent municipality on March 8, 1861, the township changed its name to Lopatcong as of March 18, 1863, after the Lopatcong Creek in the area.[19][20]

Pittsgrove Township was formed by Royal charter on December 6, 1769 and was incorporated by an act of the New Jersey Legislature on February 21, 1798, as one of the initial group of 104 townships established in New Jersey. Portions of the township were taken on March 4, 1822, to form Centreville Township (which was restored in 1829 when the township was dissolved), on March 10, 1846, to form Upper Pittsgrove Township and on January 28, 1893, to form Elmer borough.[20] The township was named for William Pitt, 1st Earl of Chatham, a supporter of the colonial cause.[21][22]

Bogota was formed on November 14, 1894, from portions of Ridgefield Township, based on the results of a referendum held that day.[21] The borough was formed during the “Boroughitis” phenomenon then sweeping through Bergen County, in which 26 boroughs were formed during 1894 alone.[22] Portions of Bogota were taken in 1895 to form part of the newly created Township of Teaneck. Bogota was named in honor of the Bogert family, which had been the first European settlers to occupy the area,[23] and may also be a blend of Bogert and Banta, another early family, with an “O” added to ease pronunciation.[24][25][26]

Until August 2014, Pitman was a dry town. Though the borough still does not allow liquor stores or bars, patrons can purchase wine by the bottle from local vineyards at select licensed establishments under the terms of a state law that bypasses municipal oversight.[24] In 2016, a pair of local breweries opened in Pitman’s Uptown business district under the terms of a state law that allows the sale of beer by the glass in tasting rooms.[25]

Jacob Fisler, who purchased much of the area that is now Clayton, acquired 6,500 acres (2,600 ha) of land after the American Revolutionary War. A settlement called Fislertown developed that had grown to 36 families by 1812.[21] The establishment of a glass factory in the 1850s by one of Fisler’s descendants led to the growth of Fislertown.[22]

Boonton was originally formed on March 16, 1866, within portions of Hanover Township and Pequannock Township. The town was reincorporated and became fully independent on March 18, 1867.[23][24][25]

Ocean Township was incorporated as a township by an act of the New Jersey Legislature on April 13, 1876, from portions of both Lacey Township and Union Township (now Barnegat Township). Portions of the township were taken to create Long Beach Township (March 23, 1899) and Island Beach (June 23, 1933; dissolved in 1965 and absorbed into Berkeley Township).[21] The township derives its name from its seaside location.[22]