Longboat key is located in Manatee county Florida with a geographic area of 4.1 square miles. The total population in Longboat key is 7,299 with 48.0% male and 52.0% female. Children under age 5 represent 0.0% of the population, under age 18 equal 1.1% of the population and over age 65 is 68.8% of the population. The median household income is $108,015, per capita income is $101,176. There are a total of 3,939 housing units with 95.0% owner occupied. Education includes 7.6% of residents that are high school graduates and 68.8% with a bachelor's degree or higher. The average temperature in Longboat key in the summer is 80 degrees, and in the winter 56 degrees.