Leavenworth is located in east Kansas. Leavenworth is part of Leavenworth County. Leavenworth has 24.04 square miles of land area and 0.02 square miles of water area. As of 2010-2014, the total Leavenworth population is 35,738, which has grown 0.90% since 2000. The population growth rate is much lower than the state average rate of 7.24% and is much lower than the national average rate of 11.61%. Leavenworth median household income is $52,022 in 2010-2014 and has grown by 27.88% since 2000. The income growth rate is about the same as the state average rate of 27.69% and is about the same as the national average rate of 27.36%. Leavenworth median house value is $117,000 in 2010-2014 and has grown by 55.59% 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 Leavenworth is much better than the state average in quality. The Leavenworth area code is 913.