Preston is located in Caroline county Maryland with a geographic area of 0.5 square miles. The total population in Preston is 861 with 47.7% male and 52.3% female. Children under age 5 represent 7.7% of the population, under age 18 equal 30.4% of the population and over age 65 is 10.2% of the population. The median household income is $58,438, per capita income is $29,517. There are a total of 326 housing units with 68.7% owner occupied. Education includes 41.7% of residents that are high school graduates and 23.9% with a bachelor's degree or higher. The average temperature in Preston in the summer is 74 degrees, and in the winter 37 degrees.
