Southold is located in Suffolk county New york with a geographic area of 10.5 square miles. The total population in Southold is 5,946 with 50.4% male and 49.6% female. Children under age 5 represent 3.6% of the population, under age 18 equal 17.4% of the population and over age 65 is 29.3% of the population. The median household income is $86,632, per capita income is $53,615. There are a total of 2,458 housing units with 89.5% owner occupied. Education includes 17.8% of residents that are high school graduates and 52.9% with a bachelor's degree or higher. The average temperature in Southold in the summer is 70 degrees, and in the winter 27 degrees.
