[20] Mantua and surrounding Gloucester County constitute part of South Jersey.

[25][26] Other unincorporated communities, localities, and places located partially or completely within the township include Barnsboro, Boodys Mills, Carpenter's Landing,[27] Centre City, Eastlack Corner, Jessups, Manunkachunk, Sewell, and West Landing.

[29][30] The 2010 United States census counted 15,217 people, 5,719 households, and 4,169 families in the township.

Of all households, 22.2% were made up of individuals and 8.8% had someone living alone who was 65 years of age or older.

[18] The Census Bureau's 2006–2010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $80,743 (with a margin of error of +/− $4,473) and the median family income was $88,586 (+/− $5,058).

21.1% of all households were made up of individuals, and 7.3% had someone living alone who was 65 years of age or older.

[39] Musical groups from the township include pop punk band Major League.

[42] Tall Pines State Preserve is a 111-acre (45 ha) nature preserve that opened in November 2015 as Gloucester County's first state park and is located along the border of Deptford Township and Mantua Township.

Originally a forest that was turned into an asparagus field and then a golf course, the land was preserved through efforts of South Jersey Land and Water Trust, the Friends of Tall Pines, Gloucester County Nature Club, and the New Jersey Green Acres Program.

[3] As of 2025[update], members of the Mantua Township Committee are Mayor Robert T. Zimmerman (D, term on committee December 31, 2027; term as mayor ends 2025), John Legge (D, 2026), Eileen Lukens (D, 2025), Jason Snyder (D, 2027) and Jack Steen (D, 2025; appointed to serve an unexpired term).

[3][47][48][49][50][51] In December 2024, Jack Steen was appointed to fill the seat expiring in December 2025 that had been held by Peter Scirrotto until he resigned from office the previous month; Steen will serve on an interim basis until the November 2025 general election, when voters will choose a candidate to serve the remainder of the term of office.

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

[55][56] New Jersey is represented in the United States Senate by Democrats Cory Booker (Newark, term ends 2027) and Andy Kim (Moorestown, term ends 2031).

[57] 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).

[106] 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.

[114][115] People who were born in, residents of, or otherwise closely associated with Mantua Township include: