Northfield is located in Atlantic county New jersey with a geographic area of 3.6 square miles. The total population in Northfield is 8,088 with 46.6% male and 53.4% female. Children under age 5 represent 2.9% of the population, under age 18 equal 20.1% of the population and over age 65 is 19.4% of the population. The median household income is $84,464, per capita income is $42,331. There are a total of 2,888 housing units with 90.1% owner occupied. Education includes 26.1% of residents that are high school graduates and 44.7% with a bachelor's degree or higher. The average temperature in Northfield in the summer is 73 degrees, and in the winter 34 degrees.
