Lancaster is located close to the center of Ohio. Lancaster is between the Fairfield, Hocking county. Lancaster has 18.84 square miles of land area and 0.06 square miles of water area. As of 2010-2014, the total Lancaster population is 39,105, which has grown 10.67% since 2000. The population growth rate is much higher than the state average rate of 1.83% and is lower than the national average rate of 11.61%. Lancaster median household income is $37,494 in 2010-2014 and has grown by 12.52% since 2000. The income growth rate is much lower than the state average rate of 19.27% and is much lower than the national average rate of 27.36%. Lancaster median house value is $116,100 in 2010-2014 and has grown by 25.51% since 2000. The house value growth rate is about the same as the state average rate of 24.98% 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 Lancaster is close to the state average in quality. The Lancaster area code is 740.