Anna is located in Collin county Texas with a geographic area of 16.4 square miles. The total population in Anna is 14,159 with 49.6% male and 50.4% female. Children under age 5 represent 8.6% of the population, under age 18 equal 29.2% of the population and over age 65 is 6.8% of the population. The median household income is $89,829, per capita income is $27,934. There are a total of 4,450 housing units with 74.0% owner occupied. Education includes 18.7% of residents that are high school graduates and 42.1% with a bachelor's degree or higher. The average temperature in Anna in the summer is 83 degrees, and in the winter 49 degrees.