Merchantville is located in Camden county New jersey with a geographic area of 0.6 square miles. The total population in Merchantville is 3,702 with 50.1% male and 49.9% female. Children under age 5 represent 6.3% of the population, under age 18 equal 21.9% of the population and over age 65 is 17.6% of the population. The median household income is $81,688, per capita income is $35,255. There are a total of 1,341 housing units with 63.8% owner occupied. Education includes 29.5% of residents that are high school graduates and 41.4% with a bachelor's degree or higher. The average temperature in Merchantville in the summer is 73 degrees, and in the winter 34 degrees.