Winchester is located in northwest Idaho. Winchester is part of Lewis County. Winchester has 0.18 square miles of land area and has no water area. As of 2010-2014, the total Winchester population is 307, which has shrunk 0.32% since 2000. The population growth rate is much lower than the state average rate of 23.61% and is much lower than the national average rate of 11.61%. Winchester median household income is $27,708 in 2010-2014 and has has shrunk by 23.56% since 2000. The income growth rate is much lower than the state average rate of 25.98% and is much lower than the national average rate of 27.36%. Winchester median house value is $105,500 in 2010-2014 and has shrunk by -39.18% since 2000. The house value growth rate is lower than the state average rate of 50.99% and is lower 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 close to the state average in quality. The Winchester area code is 208.