Merchantville is a borough in Camden County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 3,821, reflecting an increase of 20 (+0.5%) from the 3,801 counted in the 2000 Census, which had in turn declined by 294 (−7.2%) from the 4,095 counted in the 1990 Census.
Merchantville was incorporated as a borough by an act of the New Jersey Legislature on March 3, 1874, from portions of Delaware Township (now Cherry Hill Township) and the now-defunct Stockton Township.
While one source attributes the borough's name to a family named Merchant, Francis F. Eastlack, in his History of Merchantville, tells the story of the four developers of Merchantville—Matthias Homer, John Louty, Samuel McFadden and Frederick Gerker—meeting and discussing names, when it was suggested "Gentlemen, as you are all merchants, why not call it Merchantville?"
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.
The borough borders the Camden County municipalities of Cherry Hill Township and Pennsauken Township.
The 2010 United States Census counted 3,821 people, 1,574 households, and 966.436 families in the borough. The population density was 6,371.3 inhabitants per square mile (2,460.0/km2). There were 1,688 housing units at an average density of 2,814.6 per square mile (1,086.7/km2). The racial makeup was 76.58% (2,926) White, 13.01% (497) Black or African American, 0.37% (14) Native American, 2.28% (87) Asian, 0.05% (2) Pacific Islander, 4.42% (169) from other races, and 3.30% (126) from two or more races. Hispanic or Latino of any race were 11.62% (444) of the population.
Of the 1,574 households, 28.5% had children under the age of 18; 41.7% were married couples living together; 15.1% had a female householder with no husband present and 38.6% were non-families. Of all households, 32.0% were made up of individuals and 12.5% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 3.09.
22.5% of the population were under the age of 18, 8.3% from 18 to 24, 28.6% from 25 to 44, 27.7% from 45 to 64, and 12.9% who were 65 years of age or older. The median age was 38.6 years. For every 100 females, the population had 91.1 males.