Eldorado is located in west Ohio. Eldorado is part of Preble County. Eldorado has 0.23 square miles of land area and has no water area. As of 2010-2014, the total Eldorado population is 662, which has grown 21.92% since 2000. The population growth rate is much higher than the state average rate of 1.83% and is much higher than the national average rate of 11.61%. Eldorado median household income is $53,125 in 2010-2014 and has grown by 25.31% since 2000. The income growth rate is higher than the state average rate of 19.27% and is lower than the national average rate of 27.36%. Eldorado median house value is $84,600 in 2010-2014 and has grown by 14.95% since 2000. The house value growth rate is much lower than 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 Eldorado is close to the state average in quality. The Eldorado area code is 937.