Spring lake is located in Monmouth county New jersey with a geographic area of 1.3 square miles. The total population in Spring lake is 2,922 with 50.0% male and 50.0% female. Children under age 5 represent 1.6% of the population, under age 18 equal 15.7% of the population and over age 65 is 39.8% of the population. The median household income is $86,838, per capita income is $86,217. There are a total of 1,393 housing units with 82.2% owner occupied. Education includes 17.4% of residents that are high school graduates and 71.8% with a bachelor's degree or higher. The average temperature in Spring lake in the summer is 73 degrees, and in the winter 34 degrees.