Clayton is located close to the center of North Carolina. Clayton is between the Johnston, Wake county. Clayton has 13.51 square miles of land area and 0.02 square miles of water area. As of 2010-2014, the total Clayton population is 17,274, which has grown 147.73% since 2000. The population growth rate is much higher than the state average rate of 21.13% and is much higher than the national average rate of 11.61%. Clayton median household income is $56,941 in 2010-2014 and has grown by 27.24% since 2000. The income growth rate is higher than the state average rate of 19.16% and is about the same as the national average rate of 27.36%. Clayton median house value is $151,800 in 2010-2014 and has grown by 39.52% since 2000. The house value growth rate is lower than the state average rate of 41.83% and is 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 Clayton is better than the state average in quality. The Clayton area code is 919.