Smithville is located in Atlantic county New jersey with a geographic area of 5.6 square miles. The total population in Smithville is 8,861 with 46.2% male and 53.8% female. Children under age 5 represent 2.7% of the population, under age 18 equal 13.6% of the population and over age 65 is 25.0% of the population. The median household income is $58,507, per capita income is $35,674. There are a total of 4,271 housing units with 75.1% owner occupied. Education includes 28.4% of residents that are high school graduates and 34.3% with a bachelor's degree or higher. The average temperature in Smithville in the summer is 73 degrees, and in the winter 34 degrees.