Williamson County
Williamson county is located in south Illinois. Williamson county has 420.15 square miles of land area and 24.20 square miles of water area. As of 2010, the total Williamson county population is 66,357, which has grown 8.26% since 2000. The population growth rate is higher than the state average rate of 3.31% and is lower than the national average rate of 9.71%. Williamson county median household income is $40,579 in 2006-2010 and has grown by 26.85% 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%. Williamson county median house value is $87,600 in 2006-2010 and has grown by 38.39% 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 Williamson county is close to the state average in quality. The Williamson county area code is 618.
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