[19] It is located approximately 10 miles (16 km) south of Philadelphia, the nation's sixth-most populous city.

Wenonah was established as a borough by the New Jersey Legislature on March 10, 1883, from portions of Deptford Township, based on the results of a referendum that was held two days earlier.

[25] Wenonah was founded in 1871 by Philadelphia businessmen as a country resort, drawn by its location along the Mantua Creek and on the West Jersey Railroad.

[26] Over the next 40 years, numerous dams were installed to create recreational lakes.

[29] There are more than 6 miles (9.7 km) of hiking trails are threaded around lakes and alongside waterways in these conserved areas.

[30] The area was hit by a strong EF3 tornado on September 1, 2021, with winds of up to 150 miles per hour (240 km/h), produced by the remnants of Hurricane Ida.

[31] More than 200 properties in Wenonah were damaged, the largest number of any municipality hit by the tornado.

[33][34][35] The 2010 United States census counted 2,278 people, 829 households, and 649 families in the borough.

Of all households, 18.0% were made up of individuals and 6.3% had someone living alone who was 65 years of age or older.

[5] The borough form of government used by Wenonah is a "weak mayor / strong council" government in which council members act as the legislative body with the mayor presiding at meetings and voting only in the event of a tie.

The mayor can veto ordinances subject to an override by a two-thirds majority vote of the council.

[46][47] As of 2025[update], Wenonah's mayor is Democrat Jessica S. Doheny, whose term of office ends December 31, 2026.

Members of the Wenonah Borough Council are Council President Jaclyn Graves (D, 2025), Jonathan Barbato (D, 2026) Daniel Cox (D, 2027), Anthony J. Fini (D, 2026), Jeanne Grigri (D, 2025) and Alex Pozza (I, 2027).

[3][48][49][50][51][52] In May 2016, the borough council selected Daniel Cox to fill the vacant seat expiring in December 2018 that had been held by John F. Howard until his death the previous month.

[56] For the 119th United States Congress, New Jersey's 1st congressional district is represented by Donald Norcross (D, Camden).

[59] For the 2024-2025 session, the 3rd legislative district of the New Jersey Legislature is represented in the State Senate by John Burzichelli (D, Paulsboro) and in the General Assembly by David Bailey (D, Woodstown) and Heather Simmons (D, Glassboro).

[104][105] The borough is the site of a planned stop on the Glassboro–Camden Line, an 18-mile (28.97 km) diesel multiple unit light rail system projected for completion in 2019.