Summerdale is located in Baldwin county Alabama with a geographic area of 10.1 square miles. The total population in Summerdale is 1,429 with 47.7% male and 52.3% female. Children under age 5 represent 13.2% of the population, under age 18 equal 27.6% of the population and over age 65 is 23.4% of the population. The median household income is $53,274, per capita income is $23,998. There are a total of 477 housing units with 79.9% owner occupied. Education includes 32.7% of residents that are high school graduates and 21.4% with a bachelor's degree or higher. The average temperature in Summerdale in the summer is 77 degrees, and in the winter 43 degrees.