Hillsborough is located in Orange county North carolina with a geographic area of 5.7 square miles. The total population in Hillsborough is 7,162 with 48.9% male and 51.1% female. Children under age 5 represent 7.7% of the population, under age 18 equal 18.1% of the population and over age 65 is 15.9% of the population. The median household income is $65,591, per capita income is $42,109. There are a total of 3,014 housing units with 65.3% owner occupied. Education includes 8.3% of residents that are high school graduates and 68.0% with a bachelor's degree or higher. The average temperature in Hillsborough in the summer is 75 degrees, and in the winter 38 degrees.