Middleville is located close to the center of New York. Middleville is part of Herkimer County. Middleville has 0.77 square miles of land area and 0.05 square miles of water area. As of 2010-2014, the total Middleville population is 550, which has shrunk 0.00% since 2000. The population growth rate is lower than the state average rate of 3.26% and is much lower than the national average rate of 11.61%. Middleville median household income is $54,688 in 2010-2014 and has grown by 39.40% since 2000. The income growth rate is higher than the state average rate of 35.25% and is higher than the national average rate of 27.36%. Middleville median house value is $89,500 in 2010-2014 and has grown by 48.42% since 2000. The house value growth rate is much lower than the state average rate of 90.79% 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 Middleville is better than the state average in quality. The Middleville area code is 315.