Avenel is located in Middlesex county New jersey with a geographic area of 3.4 square miles. The total population in Avenel is 17,175 with 58.4% male and 41.6% female. Children under age 5 represent 6.1% of the population, under age 18 equal 20.8% of the population and over age 65 is 12.4% of the population. The median household income is $71,990, per capita income is $26,261. There are a total of 4,992 housing units with 49.2% owner occupied. Education includes 30.3% of residents that are high school graduates and 30.6% with a bachelor's degree or higher. The average temperature in Avenel in the summer is 73 degrees, and in the winter 34 degrees.