Newton is located in Sussex county New jersey with a geographic area of 3.4 square miles. The total population in Newton is 7,935 with 48.3% male and 51.7% female. Children under age 5 represent 2.5% of the population, under age 18 equal 15.9% of the population and over age 65 is 18.7% of the population. The median household income is $66,763, per capita income is $35,823. There are a total of 3,459 housing units with 55.2% owner occupied. Education includes 24.4% of residents that are high school graduates and 31.4% with a bachelor's degree or higher. The average temperature in Newton in the summer is 73 degrees, and in the winter 34 degrees.