Clayton is located close to the center of Idaho. Clayton is part of Custer County. Clayton has 0.01 square miles of land area and has no water area. As of 2010-2014, the total Clayton population is 7, which has shrunk 74.07% since 2000. The population growth rate is much lower than the state average rate of 23.61% and is much lower than the national average rate of 11.61%. Clayton median household income is $22,083 in 2008-2012 and has has shrunk by 56.38% since 2000. The income growth rate is much lower than the state average rate of 25.98% and is much lower than the national average rate of 27.36%. Clayton median house value is $179,200 in 2008-2012 and has shrunk by -93.73% since 2000. The house value growth rate is much higher than the state average rate of 50.99% and is much 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 Clayton is close to the state average in quality. The Clayton area code is 208.