Merchantville is a borough in Camden County, New Jersey, United States. As of the United States 2010 Census, the borough population was 3,821. 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 Stockton Township. According to the United States Census Bureau, the borough has a total area of 0.6 square miles (1.6 km²), all of it land.