Quincy is located close to the center of Washington. Quincy is between the Grant, Douglas county. Quincy has 4.96 square miles of land area and 0.08 square miles of water area. As of 2010-2014, the total Quincy population is 7,075, which has grown 40.27% since 2000. The population growth rate is much higher than the state average rate of 17.05% and is much higher than the national average rate of 11.61%. Quincy median household income is $38,322 in 2010-2014 and has grown by 19.08% since 2000. The income growth rate is much lower than the state average rate of 31.72% and is lower than the national average rate of 27.36%. Quincy median house value is $138,700 in 2010-2014 and has grown by 49.14% since 2000. The house value growth rate is lower than the state average rate of 52.82% and is about the same as the national average rate of 46.91%. As a reference, the national Consumer Price Index (CPI) inflation rate for the same period is 26.63%. On average, the public school district that covers Quincy is worse than the state average in quality. The Quincy area code is 509.