Cresskill is located in Bergen county New jersey with a geographic area of 2.1 square miles. The total population in Cresskill is 8,701 with 45.7% male and 54.3% female. Children under age 5 represent 4.0% of the population, under age 18 equal 25.3% of the population and over age 65 is 18.6% of the population. The median household income is $141,706, per capita income is $62,007. There are a total of 2,917 housing units with 80.8% owner occupied. Education includes 16.6% of residents that are high school graduates and 66.0% with a bachelor's degree or higher. The average temperature in Cresskill in the summer is 73 degrees, and in the winter 34 degrees.