Allerton is located in south Iowa. Allerton is part of Wayne County. Allerton has 1.14 square miles of land area and 0.00 square miles of water area. As of 2010-2014, the total Allerton population is 474, which has shrunk 15.21% since 2000. The population growth rate is much lower than the state average rate of 5.19% and is much lower than the national average rate of 11.61%. Allerton median household income is $42,813 in 2010-2014 and has grown by 47.99% 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%. Allerton median house value is $40,600 in 2010-2014 and has grown by 45.00% 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 Allerton is much better than the state average in quality. The Allerton area code is 641.