[21] The territory that became South Hackensack was the "last unattractive portion" of Lodi Township that neighboring municipalities didn't want as it was "either rural areas or areas that the others did not want to include in their boundaries because they didn't want to pave the roads there or school the children" according to Kevin Wright, a local historian.

[22] On November 15, 2024 Representative Josh Gottheimer announced that he would be running for governor of New Jersey from South Hackensack's Runway Diner.

[2][3] After several boroughs were formed within the limits of Lodi Township, what remains as South Hackensack is divided into three noncontiguous sections.

The northeastern, primary residential section is adjacent to Hackensack, Little Ferry and Teterboro.

[25][26][27] Along with other municipalities in the Bergen County area, South Hackensack is a suburb of New York City.

The 2010 United States census counted 2,378 people, 845 households, and 613 families in the township.

[38] As of the 2000 United States census[14] there were 2,249 people, 811 households, and 593 families residing in the township.

While South Hackensack has its own police department serving all three portions of the township, the neighboring borough of Wallington provides other emergency services for Garfield Park.

[24] As of 2025[update], members of the Township Committee are Mayor James Anzevino (D, term on committee ends December 31, 2026; term as mayor ends 2025), Deputy Luis Perdono (D, term on committee and as deputy mayor ends 2026), James Gary Brugger (D, 2027), Frank X. Cagas (D, 2027), and Yris Encarnacion (D, 2025).

[48] For the 119th United States Congress, New Jersey's 9th congressional district is represented by Nellie Pou (D, North Haledon)[49] New Jersey is represented in the United States Senate by Democrats Cory Booker (Newark, term ends 2027) and Andy Kim (Moorestown, term ends 2031).

[50] For the 2024-2025 session, the 38th legislative district of the New Jersey Legislature is represented in the State Senate by Joseph Lagana (D, Paramus) and in the General Assembly by Lisa Swain (D, Fair Lawn) and Chris Tully (D, Bergenfield).

As of 2025[update], the county executive is James J. Tedesco III (D, Paramus), whose four-year term of office ends December 31, 2026.

[52] Bergen County's Commissioners are: Thomas J. Sullivan Jr. (D, Montvale, 2025),[53] Chair Germaine M. Ortiz (D, Emerson, 2025),[54] Joan Voss (D, Fort Lee, 2026),[55] Vice Chair Mary J. Amoroso (D, Mahwah, 2025),[56] Rafael Marte (D, Bergenfield, 2026),[57] Steven A. Tanelli (D, North Arlington, 2027)[58] and Tracy Silna Zur (D, Franklin Lakes, 2027).

[59][60][61][62][63][64][65][66] Bergen County's constitutional officials are: Clerk John S. Hogan (D, Northvale, 2026),[67][68] Sheriff Anthony Cureton (D, Englewood, 2027)[69][70] and Surrogate Michael R. Dressler (D, Cresskill, 2026).

[80] Among the township's 2010 Census population, 54.7% (vs. 57.1% in Bergen County) were registered to vote, including 70.0% of those ages 18 and over (vs. 73.7% countywide).