Seffner is located in Hillsborough county Florida with a geographic area of 3.6 square miles. The total population in Seffner is 8,236 with 49.2% male and 50.8% female. Children under age 5 represent 9.2% of the population, under age 18 equal 27.7% of the population and over age 65 is 13.0% of the population. The median household income is $73,988, per capita income is $33,658. There are a total of 2,751 housing units with 82.2% owner occupied. Education includes 25.2% of residents that are high school graduates and 25.1% with a bachelor's degree or higher. The average temperature in Seffner in the summer is 80 degrees, and in the winter 56 degrees.