Winchester is located close to the center of Massachusetts. Winchester is part of Middlesex County. Winchester has 6.03 square miles of land area and 0.32 square miles of water area. As of 2010-2014, the total Winchester population is 21,863, which has grown 5.06% since 2000. The population growth rate is about the same as the state average rate of 4.85% and is much lower than the national average rate of 11.61%. Winchester median household income is $141,829 in 2010-2014 and has grown by 50.80% since 2000. The income growth rate is higher than the state average rate of 34.34% and is much higher than the national average rate of 27.36%. Winchester median house value is $699,600 in 2010-2014 and has grown by 65.86% since 2000. The house value growth rate is lower than the state average rate of 77.65% and is higher than 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 Winchester is much better than the state average in quality. The Winchester area code is 781.