Springfield is located in Union county New jersey with a geographic area of 0.4 square miles. The total population in Springfield is 1,498 with 43.5% male and 56.5% female. Children under age 5 represent 5.3% of the population, under age 18 equal 13.7% of the population and over age 65 is 12.7% of the population. The median household income is $103,523, per capita income is $57,039. There are a total of 596 housing units with 68.8% owner occupied. Education includes 16.6% of residents that are high school graduates and 65.8% with a bachelor's degree or higher. The average temperature in Springfield in the summer is 73 degrees, and in the winter 34 degrees.