Middletown is located in northeast Missouri. Middletown is between the Montgomery, Audrain, Lincoln, Pike county. Middletown has 0.32 square miles of land area and has no water area. As of 2010-2014, the total Middletown population is 177, which has shrunk 11.06% since 2000. The population growth rate is much lower than the state average rate of 7.74% and is much lower than the national average rate of 11.61%. Middletown median household income is $30,000 in 2010-2014 and has grown by 53.85% since 2000. The income growth rate is much higher than the state average rate of 25.91% and is much higher than the national average rate of 27.36%. Middletown median house value is $40,000 in 2010-2014 and has grown by 19.40% since 2000. The house value growth rate is much lower than the state average rate of 52.06% 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. The Middletown area code is 573.