Mamaroneck is located in Westchester county New york with a geographic area of 3.2 square miles. The total population in Mamaroneck is 19,247 with 50.7% male and 49.3% female. Children under age 5 represent 5.7% of the population, under age 18 equal 24.5% of the population and over age 65 is 15.7% of the population. The median household income is $106,828, per capita income is $57,926. There are a total of 6,707 housing units with 60.5% owner occupied. Education includes 15.6% of residents that are high school graduates and 59.0% with a bachelor's degree or higher. The average temperature in Mamaroneck in the summer is 70 degrees, and in the winter 27 degrees.