Erlanger is located in north Kentucky. Erlanger is part of Kenton County. Erlanger has 8.33 square miles of land area and 0.17 square miles of water area. As of 2010-2014, the total Erlanger population is 18,370, which has grown 10.16% since 2000. The population growth rate is higher than the state average rate of 8.45% and is lower than the national average rate of 11.61%. Erlanger median household income is $56,625 in 2010-2014 and has grown by 32.19% since 2000. The income growth rate is higher than the state average rate of 28.72% and is higher than the national average rate of 27.36%. Erlanger median house value is $121,100 in 2010-2014 and has grown by 24.72% since 2000. The house value growth rate is much lower than the state average rate of 40.25% 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 Erlanger is better than the state average in quality. The Erlanger area code is 859.