Other unincorporated communities, localities and place names located partially or completely within the township include Crystal Lake, Cuthbert and Oakdale. The downtown portion of the township is known as Westmont, a name probably derived from a noted harness racing horse. Haddon Township has two exclaves, West Collingswood Heights and West Collingswood Extension. Geography Īccording to the United States Census Bureau, Haddon Township had a total area of 2.82 square miles (7.30 km 2), including 2.69 square miles (6.97 km 2) of land and 0.13 square miles (0.33 km 2) of water (4.54%). The area where Saddler settled became a predominantly black community known as Saddlertown, a stop on the Underground Railroad. Saddler worked for Cy Evans, a local Quaker farmer, from whom he bought five acres to farm. In the late 1830s, a runaway enslaved man, who had taken the surname Saddler to avoid detection by his former master, came to New Jersey from a Maryland plantation with his wife and two daughters. Contemporary Newton Township included land that later became part of Audubon, Audubon Park, Camden, Collingswood, Gloucester City, Haddon Heights, Haddonfield, Oaklyn, and Woodlynne. In 1701, Elizabeth Haddon Estaugh, the daughter of John Haddon, arrived in the American colonies to oversee his large landholdings, which included areas that are now Collingswood, Haddon Township, and Haddonfield. The township's first European settlers settled in the area of Newton Creek in 1681. Haddon Township allows the sale of alcohol, and has several bars and restaurants which serve alcoholic beverages, unlike the neighboring boroughs of Collingswood, Haddonfield and Haddon Heights which prohibit the sale of alcohol. The township was named for early settler Elizabeth Haddon.

The following communities were subsequently created from the Haddon Township: Haddonfield (April 6, 1875), Collingswood (May 22, 1888), Woodlynne (March 19, 1901), Haddon Heights (March 2, 1904), Audubon (March 13, 1905) and Oaklyn (also March 13, 1905). Under the terms of an act of the New Jersey Legislature on February 23, 1865, Haddon Township was incorporated from portions of Newton Township.

As of the 2020 United States census, the township's population was 15,407, an increase of 700 (+4.8%) from the 2010 census count of 14,707, which in turn reflected an increase of 56 (+0.4%) from the 14,651 counted in the 2000 census. Haddon Township is a township in Camden County, in the U.S.

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