Middletown is located close to the center of Kentucky. Middletown is part of Jefferson County. Middletown has 5.04 square miles of land area and 0.06 square miles of water area. As of 2010-2014, the total Middletown population is 7,333, which has grown 27.66% since 2000. The population growth rate is much higher than the state average rate of 8.45% and is much higher than the national average rate of 11.61%. Middletown median household income is $56,503 in 2010-2014 and has grown by 5.40% since 2000. The income growth rate is much lower than the state average rate of 28.72% and is much lower than the national average rate of 27.36%. Middletown median house value is $180,600 in 2010-2014 and has grown by 30.49% since 2000. The house value growth rate is lower than the state average rate of 40.25% and is much 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 Middletown is close to the state average in quality.