Mercer is located in west Pennsylvania. Mercer is part of Mercer County. Mercer has 1.14 square miles of land area and 0.00 square miles of water area. As of 2010-2014, the total Mercer population is 2,024, which has shrunk 15.35% since 2000. The population growth rate is much lower than the state average rate of 3.89% and is much lower than the national average rate of 11.61%. Mercer median household income is $48,750 in 2010-2014 and has grown by 63.62% since 2000. The income growth rate is much higher than the state average rate of 32.44% and is much higher than the national average rate of 27.36%. Mercer median house value is $101,500 in 2010-2014 and has grown by 33.03% since 2000. The house value growth rate is much lower than the state average rate of 70.00% and is 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 Mercer is better than the state average in quality. The Mercer area code is 724.