Mendota is located in La salle county Illinois with a geographic area of 5.1 square miles. The total population in Mendota is 6,927 with 48.9% male and 51.1% female. Children under age 5 represent 5.4% of the population, under age 18 equal 23.7% of the population and over age 65 is 18.6% of the population. The median household income is $58,974, per capita income is $30,470. There are a total of 2,788 housing units with 64.1% owner occupied. Education includes 36.5% of residents that are high school graduates and 19.0% with a bachelor's degree or higher. The average temperature in Mendota in the summer is 69 degrees, and in the winter 27 degrees.