Merrick is located in Nassau county New york with a geographic area of 4.0 square miles. The total population in Merrick is 20,594 with 52.2% male and 47.8% female. Children under age 5 represent 6.1% of the population, under age 18 equal 22.9% of the population and over age 65 is 17.3% of the population. The median household income is $160,281, per capita income is $64,283. There are a total of 7,132 housing units with 95.8% owner occupied. Education includes 11.9% of residents that are high school graduates and 63.8% with a bachelor's degree or higher. The average temperature in Merrick in the summer is 70 degrees, and in the winter 27 degrees.
