[1][2] Unincorporated communities, localities, and places located partially or completely within the township include Cedar Grove, Harrisonville (served as ZIP Code 08039), Jessups Mills, and Lincoln.

[22][23] The 2010 United States census counted 3,162 people, 1,020 households, and 862 families in the township.

Of all households, 11.5% were made up of individuals and 4.8% had someone living alone who was 65 years of age or older.

[15] The Census Bureau's 2006–2010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $106,667 (with a margin of error of +/− $12,029) and the median family income was $113,875 (+/− $14,397).

13.4% of all households were made up of individuals, and 5.0% had someone living alone who was 65 years of age or older.

[3] As of 2025[update], members of the South Harrison Township Committee are Mayor Joseph Marino (R, term on committee ends December 31, 2027; term as mayor ends 2025), Deputy Mayor Robert J. Diaz (R, term on committee ends 2026; term as deputy mayor ends 2025), John Horner (R, 2027), Robert L. Richardson (R, 2025) and Robert Schenk (R, 2026).

[3][36][37][38][39][40] In 2007, Charles Tyson was elected Mayor, the first African American to hold the post.

[citation needed] In 2009, however, he declined to seek re-election to a third term, citing the death threats and racist vandalism that had arisen.

[42] He had received threatening phone calls and emails, his tires were slashed, and "KKK" was written on a sign on his lawn.

[44][45][46] No arrests have been made, however, in connection with the incidents in 2007,[47] even though the town posted a $24,000 reward.

[49][50][51] For the 119th United States Congress, New Jersey's 2nd congressional district is represented by Jeff Van Drew (R, Dennis Township).

[52] New Jersey is represented in the United States Senate by Democrats Cory Booker (Newark, term ends 2027) and Andy Kim (Moorestown, term ends 2031).

[53] 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).

As of 2025[update], Gloucester County's Commissioners are: Director Frank J. DiMarco (D, Deptford Township, 2025),[55] Matt Weng (D, Pitman, 2026),[56] Joann Gattinelli (D, Washington Township, 2026),[57] Nicholas DeSilvio (R, Franklin Township, 2027),[58] Denice DiCarlo (D, West Deptford Township, 2025)[59] Deputy Director Jim Jefferson (D, Woodbury, 2026) and [60] Christopher Konawel Jr. (R, Glassboro, 2027).

[88] Public school students in seventh through twelfth grades are educated by the Kingsway Regional School District, which also serves students from East Greenwich Township, Swedesboro and Woolwich Township, with the addition of students from Logan Township who attend the district's high school as part of a sending/receiving relationship in which tuition is paid on a per-pupil basis by the Logan Township School District.

[97] Students from across the county are eligible to apply to attend Gloucester County Institute of Technology, a four-year high school in Deptford Township that provides technical and vocational education.