Triangle is located in Prince william county Virginia with a geographic area of 2.8 square miles. The total population in Triangle is 10,526 with 53.7% male and 46.3% female. Children under age 5 represent 9.1% of the population, under age 18 equal 26.7% of the population and over age 65 is 7.5% of the population. The median household income is $91,438, per capita income is $38,724. There are a total of 3,107 housing units with 55.4% owner occupied. Education includes 22.4% of residents that are high school graduates and 44.0% with a bachelor's degree or higher. The average temperature in Triangle in the summer is 71 degrees, and in the winter 35 degrees.
