Clay county is located in south Illinois. Clay county has 468.32 square miles of land area and 1.28 square miles of water area. As of 2010, the total Clay county population is 13,815, which has shrunk 5.12% since 2000. The population growth rate is much lower than the state average rate of 3.31% and is much lower than the national average rate of 9.71%. Clay county median household income is $38,016 in 2006-2010 and has grown by 24.24% since 2000. The income growth rate is much higher than the state average rate of 13.70% and is higher than the national average rate of 19.17%. Clay county median house value is $72,700 in 2006-2010 and has grown by 41.17% since 2000. The house value growth rate is lower than the state average rate of 46.64% and is lower than the national average rate of 50.42%. 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 Clay county is close to the state average in quality. The Clay county area code is 618.
Hot Illinois Rankings