Mercer is located in north Missouri. Mercer is part of Mercer County. Mercer has 0.37 square miles of land area and has no water area. As of 2010-2014, the total Mercer population is 461, which has grown 34.80% since 2000. The population growth rate is much higher than the state average rate of 7.74% and is much higher than the national average rate of 11.61%. Mercer median household income is $32,000 in 2010-2014 and has grown by 33.86% since 2000. The income growth rate is higher than the state average rate of 25.91% and is higher than the national average rate of 27.36%. Mercer median house value is $37,000 in 2010-2014 and has grown by 45.67% since 2000. The house value growth rate is lower than the state average rate of 52.06% 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 Mercer is better than the state average in quality. The Mercer area code is 660.