Callender is located close to the center of Iowa. Callender is part of Webster County. Callender has 0.52 square miles of land area and has no water area. As of 2010-2014, the total Callender population is 436, which has grown 2.83% since 2000. The population growth rate is lower than the state average rate of 5.19% and is much lower than the national average rate of 11.61%. Callender median household income is $47,344 in 2010-2014 and has grown by 39.63% since 2000. The income growth rate is higher than the state average rate of 33.56% and is higher than the national average rate of 27.36%. Callender median house value is $65,300 in 2010-2014 and has grown by 30.60% since 2000. The house value growth rate is much lower than the state average rate of 53.09% 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 Callender is much better than the state average in quality. The Callender area code is 515.