Millville is located in Cumberland county New jersey with a geographic area of 42.0 square miles. The total population in Millville is 27,485 with 47.9% male and 52.1% female. Children under age 5 represent 4.8% of the population, under age 18 equal 20.8% of the population and over age 65 is 18.1% of the population. The median household income is $63,182, per capita income is $42,192. There are a total of 11,500 housing units with 67.7% owner occupied. Education includes 35.4% of residents that are high school graduates and 19.1% with a bachelor's degree or higher. The average temperature in Millville in the summer is 74 degrees, and in the winter 34 degrees.