Allenhurst is located in Monmouth county New jersey with a geographic area of 0.3 square miles. The total population in Allenhurst is 492 with 49.2% male and 50.8% female. Children under age 5 represent 4.3% of the population, under age 18 equal 18.1% of the population and over age 65 is 18.1% of the population. The median household income is $100,625, per capita income is $89,409. There are a total of 191 housing units with 64.9% owner occupied. Education includes 11.5% of residents that are high school graduates and 62.3% with a bachelor's degree or higher. The average temperature in Allenhurst in the summer is 73 degrees, and in the winter 34 degrees.