Mercer County
Mercer county is located in northwest Illinois. Mercer county has 561.20 square miles of land area and 7.49 square miles of water area. As of 2010, the total Mercer county population is 16,434, which has shrunk 3.08% 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%. Mercer county median household income is $50,909 in 2006-2010 and has grown by 24.49% 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%. Mercer county median house value is $102,800 in 2006-2010 and has grown by 50.07% since 2000. The house value growth rate is higher than the state average rate of 46.64% and is about the same as 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 Mercer county is much better than the state average in quality. The Mercer county area code is 309.
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