[23] It is a dry town, where alcohol cannot be sold, as affirmed by a referendum passed in 1972.

[1][2] Carlls Corner, Deerfield Street, Laurel Heights, Seabrook Farms (2010 population of 1,484[27]), Seeley, Silver Lake, and Sunset Lake are unincorporated communities and census-designated places (CDPs) within Upper Deerfield Township.

[28] Other unincorporated communities, localities and place names located partially or completely within the township include Beals Mills, Delaby, Finley, Friendship, Grammel Mills, Husted Station, Pleasant Grove, Seabrook, Seeley, Sunset, Watsons Corner and Woodruff.

[30][31] The 2010 United States census counted 7,660 people, 2,866 households, and 2,104 families in the township.

Of all households, 22.1% were made up of individuals and 10.9% had someone living alone who was 65 years of age or older.

[38] As of the 2000 United States census[14] there were 7,556 people, 2,757 households, and 2,125 families residing in the township.

20.0% of all households were made up of individuals, and 10.4% had someone living alone who was 65 years of age or older.

[36][37] Sunset Lake is a reservoir located primarily in Hopewell Township and Upper Deerfield Township that was created by damming a stream that feeds to the area from Seeley Lake.

[48][49][50] For the 119th United States Congress, New Jersey's 2nd congressional district is represented by Jeff Van Drew (R, Dennis Township).

[52] 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).

[53] Cumberland County is governed by a Board of County Commissioners composed of seven members who are elected at large by the citizens of Cumberland County in partisan elections and serve staggered three-year terms in office, with either two or three seats coming up for election each year in a three-year cycle.

[54] As of 2025[update], members of the Cumberland County Board of County Commissioners (with party affiliation, residence and term-end year listed in parentheses) are: Douglas A. Albrecht (R, Vineland, 2025),[55] Deputy Director Antonio Romero (R, Vineland, 2027),[56] Sandra Taylor (R, Downe Township; 2026),[57] Victoria Groetsch-Lods (R, Vineland, 2025),[58] Arthur Marchand (R, Hopewell Township, 2026),[59] James Sauro (R, Vineland, 2026)[60] and Robert A. Austino (D, Bridgeton, 2027).

[74][75] In the 2008 presidential election, Republican John McCain received 51.2% of the vote (1,864 cast), ahead of Democrat Barack Obama, who received 46.5% (1,694 votes), with 3,640 ballots cast among the township's 5,150 registered voters, for a turnout of 70.7%.

[76] In the 2004 presidential election, Republican George W. Bush received 54.5% of the vote (1,842 ballots cast), outpolling Democrat John Kerry, who received around 43.2% (1,460 votes), with 3,377 ballots cast among the township's 4,734 registered voters, for a turnout percentage of 71.3.

[108][109] People who were born in, residents of, or otherwise closely associated with Upper Deerfield Township include: