"[24] According to the United States Census Bureau, Merchantville borough had a total area of 0.59 square miles (1.54 km2), all of which was land.

[1][2] The borough borders the Camden County municipalities of Cherry Hill and Pennsauken Township.

[25][26][27] The 2010 United States census counted 3,821 people, 1,574 households, and 966 families in the borough.

[37] As of the 2000 United States census[15] there were 3,801 people, 1,524 households, and 946 families residing in the borough.

[6] The borough form of government used by Merchantville 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.

[39][40] As of 2023[update], the mayor of Merchantville Borough is Democrat Edward F. "Ted" Brennan, whose term of office ends December 31, 2026.

[3][41][42][43][44] In May 2018, the borough council appointed Sean Fitzgerald to fill the seat expiring in December 2020 that had been held by Katherine Swann until she resigned from office.

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

At a reorganization meeting held in January after each election, the newly constituted Board of Commissioners selects one member to serve as Director and another as Deputy Director, each serving a one-year term in that role.

[60][53][61][62][63] Camden County's constitutional officers are: Clerk Pamela Rosen Lampitt (D, Cherry Hill, 2029)[64][65] Sheriff Chuck Billingham (D, Gloucester City, 2027)[66][67] and Surrogate Michelle Gentek-Mayer (D, Gloucester Township, 2025).

[72][73] In the 2008 presidential election, Democrat Barack Obama received 63.8% of the vote (1,274 cast), ahead of Republican John McCain, who received around 33.4% (667 votes), with 1,998 ballots cast among the borough's 2,533 registered voters, for a turnout of 78.9%.

[74] In the 2004 presidential election, Democrat John Kerry received 57.9% of the vote (1,107 ballots cast), outpolling Republican George W. Bush, who received around 37.2% (711 votes), with 1,912 ballots cast among the borough's 2,461 registered voters, for a turnout percentage of 77.7.

[83] The commissioner of the New Jersey Department of Education approved the district's proposal and beginning in September 2015 Merchantville began sending students to Haddon Heights High School for grades 9–12, joining students from Barrington and Lawnside, who already attended the school.

[89] No Interstate, U.S. or state highways directly serve Merchantville, though U.S. Route 130 comes closest, passing by about two blocks from the borough's west end.