Osage is located in north Iowa. Osage is between the Mitchell, Floyd, Worth county. Osage has 2.24 square miles of land area and has no water area. As of 2010-2014, the total Osage population is 3,628, which has grown 5.13% since 2000. The population growth rate is about the same as the state average rate of 5.19% and is much lower than the national average rate of 11.61%. Osage median household income is $44,410 in 2010-2014 and has grown by 44.77% since 2000. The income growth rate is higher than the state average rate of 33.56% and is much higher than the national average rate of 27.36%. Osage median house value is $101,100 in 2010-2014 and has grown by 45.89% since 2000. The house value growth rate is lower than the state average rate of 53.09% 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 Osage is much better than the state average in quality. The Osage area code is 641.