Quincy is located in Grant county Washington with a geographic area of 6.1 square miles. The total population in Quincy is 7,815 with 49.5% male and 50.5% female. Children under age 5 represent 9.7% of the population, under age 18 equal 40.0% of the population and over age 65 is 7.3% of the population. The median household income is $57,731, per capita income is $20,065. There are a total of 2,060 housing units with 64.8% owner occupied. Education includes 33.7% of residents that are high school graduates and 16.2% with a bachelor's degree or higher. The average temperature in Quincy in the summer is 70 degrees, and in the winter 42 degrees.
