Monroe township is located in Middlesex county New jersey with a geographic area of square miles. The total population in Monroe township is 44,615 with 48.7% male and 51.3% female. Children under age 5 represent 2.9% of the population, under age 18 equal 17.5% of the population and over age 65 is 37.6% of the population. The median household income is $95,698, per capita income is $57,699. There are a total of 19,526 housing units with 90.3% owner occupied. Education includes 24.6% of residents that are high school graduates and 47.8% with a bachelor's degree or higher. The average temperature in Monroe township in the summer is 73 degrees, and in the winter 32 degrees.