Adena is located in east Ohio. Adena is between the Jefferson, Belmont, Harrison county. Adena has 0.54 square miles of land area and has no water area. As of 2010-2014, the total Adena population is 689, which has shrunk 15.46% since 2000. The population growth rate is much lower than the state average rate of 1.83% and is much lower than the national average rate of 11.61%. Adena median household income is $38,300 in 2010-2014 and has grown by 51.14% since 2000. The income growth rate is much higher than the state average rate of 19.27% and is much higher than the national average rate of 27.36%. Adena median house value is $56,800 in 2010-2014 and has grown by 45.64% since 2000. The house value growth rate is much higher than the state average rate of 24.98% 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 Adena is worse than the state average in quality. The Adena area code is 740.