Holly springs is located in Wake county North carolina with a geographic area of 17.3 square miles. The total population in Holly springs is 36,595 with 47.4% male and 52.6% female. Children under age 5 represent 7.5% of the population, under age 18 equal 35.1% of the population and over age 65 is 7.5% of the population. The median household income is $110,758, per capita income is $42,349. There are a total of 11,573 housing units with 81.7% owner occupied. Education includes 8.0% of residents that are high school graduates and 61.7% with a bachelor's degree or higher. The average temperature in Holly springs in the summer is 75 degrees, and in the winter 38 degrees.