Editing Haddonfield, New Jersey (section)

== Geography ==
According to the [[United States Census Bureau]], the borough had a total area of 2.84 square miles (7.36&nbsp;km<sup>2</sup>), including 2.80 square miles (7.24&nbsp;km<sup>2</sup>) of land and 0.05 square miles (0.12&nbsp;km<sup>2</sup>) of water (1.58%).<ref name=CensusArea/><ref name=GR1 />

The [[Cooper River (New Jersey)|Cooper River]] forms the border between Haddonfield and [[Cherry Hill, New Jersey|Cherry Hill]]. Haddonfield shares land borders with [[Audubon, New Jersey|Audubon]], [[Barrington, New Jersey|Barrington]], [[Haddon Township, New Jersey|Haddon Township]], [[Haddon Heights, New Jersey|Haddon Heights]], [[Lawnside, New Jersey|Lawnside]], and [[Tavistock, New Jersey|Tavistock]].<ref>[https://global.mapit.mysociety.org/area/837989/touches.html Areas touching Haddonfield], MapIt. Accessed March 31, 2020.</ref><ref>[https://www.dvrpc.org/Mapping/Maps/pdf/Camden_MCDs.pdf Municipalities within Camden County, NJ], [[Delaware Valley Regional Planning Commission]]. Accessed March 31, 2020.</ref><ref>[https://www.state.nj.us/transportation/gis/maps/polnoroads.pdf New Jersey Municipal Boundaries], [[New Jersey Department of Transportation]]. Accessed November 15, 2019.</ref>

===Bodies of water===
*Hopkins Pond, covering {{Convert|33|acres}}, is contained by a large earthen dam, and Hopkins Lane is built atop it. The pond was created in 1789, when John Estaugh Hopkins built a dam on a tributary of the Cooper River to power a gristmill that operated until the 1850s.<ref>[https://www.camdencounty.com/wp-content/uploads/2017/02/HOPKINS-POND-5-10-17-updated.pdf Hopkins Pond], [[Camden County, New Jersey]]. Accessed April 2, 2025. "Hopkins Pond (33.10 acres) is located in Haddonfield, off of Grove Street, on both sides of Hopkins Lane.... Originally an underground stream, Hopkins Pond was created in 1789 when an earthen dam was built by John Estaugh Hopkins. The pond was built to power the Haddon Mill which stayed operational until the 1850s."</ref> In recent years, local officials have raised concerns about the pond being contaminated with [[cyanobacteria]] that can produce toxic algae blooms.<ref>Kummer, Frank. [https://www.inquirer.com/science/climate/haddonfield-harmful-algal-bloom-20200814.html "How this picturesque Haddonfield pond became a toxic algae problem"], ''[[The Philadelphia Inquirer]]'', August 14, 2020. Accessed June 11, 2022.</ref><ref>Haberland, Mike; and McGee, Carig. [https://njawra.org/hopkins_pond ''Hopkins Pond - A Multifaceted Approach to Improve Water Quality and Habitat''], New Jersey Section of American Water Resources Association. Accessed June 11, 2022.</ref>
*Driscoll Pond, contained by a small wooden dam, is below Hopkins Pond, and Hopkins Pond flows into it. Driscoll Pond is part of the Hopkins Pond park.
*Evans Pond is part of Wallworth Park and located above Wallworth Lake with a dam separating the two. Formerly Evans Pond was deep enough for small boats to sail on it.
*Wallworth Lake, in Wallworth Park, is below Evans Pond, and contained by another dam.