Onaga is located in northeast Kansas. Onaga is between the Pottawatomie, Nemaha county. Onaga has 0.64 square miles of land area and 0.00 square miles of water area. As of 2010-2014, the total Onaga population is 764, which has grown 8.52% since 2000. The population growth rate is higher than the state average rate of 7.24% and is lower than the national average rate of 11.61%. Onaga median household income is $43,500 in 2010-2014 and has grown by 50.37% since 2000. The income growth rate is much higher than the state average rate of 27.69% and is much higher than the national average rate of 27.36%. Onaga median house value is $67,600 in 2010-2014 and has grown by 57.21% since 2000. The house value growth rate is about the same as the state average rate of 54.97% and is higher 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 Onaga is much better than the state average in quality. The Onaga area code is 785.