Greencastle is located in north Missouri. Greencastle has 0.45 square miles of land area and 0.00 square miles of water area. As of 2010-2014, the total Greencastle population is 312, which has grown 1.30% 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%. Greencastle median household income is $22,308 in 2010-2014 and has grown by 27.47% since 2000. The income growth rate is higher than the state average rate of 25.91% and is about the same as the national average rate of 27.36%. Greencastle median house value is $45,300 in 2010-2014 and has grown by 166.47% since 2000. The house value growth rate is much higher than the state average rate of 52.06% and is much 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 Greencastle is worse than the state average in quality.