Umatilla is located in Lake county Florida with a geographic area of 3.6 square miles. The total population in Umatilla is 3,814 with 46.1% male and 53.9% female. Children under age 5 represent 1.3% of the population, under age 18 equal 11.1% of the population and over age 65 is 42.9% of the population. The median household income is $54,534, per capita income is $30,146. There are a total of 1,680 housing units with 61.1% owner occupied. Education includes 21.9% of residents that are high school graduates and 30.7% with a bachelor's degree or higher. The average temperature in Umatilla in the summer is 80 degrees, and in the winter 56 degrees.