Mullica hill is located in Gloucester county New jersey with a geographic area of 3.8 square miles. The total population in Mullica hill is 3,605 with 46.3% male and 53.7% female. Children under age 5 represent 6.5% of the population, under age 18 equal 20.7% of the population and over age 65 is 19.6% of the population. The median household income is $105,903, per capita income is $45,972. There are a total of 1,453 housing units with 83.8% owner occupied. Education includes 15.8% of residents that are high school graduates and 55.7% with a bachelor's degree or higher. The average temperature in Mullica hill in the summer is 73 degrees, and in the winter 34 degrees.