Long beach is located in Harrison county Mississippi with a geographic area of 10.2 square miles. The total population in Long beach is 15,829 with 47.3% male and 52.7% female. Children under age 5 represent 5.3% of the population, under age 18 equal 23.5% of the population and over age 65 is 19.0% of the population. The median household income is $60,313, per capita income is $30,621. There are a total of 6,461 housing units with 65.4% owner occupied. Education includes 29.3% of residents that are high school graduates and 26.2% with a bachelor's degree or higher. The average temperature in Long beach in the summer is 82 degrees, and in the winter 44 degrees.