Polk County
Polk county is located close to the center of Missouri. Polk county has 635.52 square miles of land area and 6.89 square miles of water area. As of 2010-2014, the total Polk county population is 31,122, which has grown 15.30% since 2000. The population growth rate is much higher than the state average rate of 7.74% and is higher than the national average rate of 11.61%. Polk county median household income is $39,336 in 2010-2014 and has grown by 32.64% since 2000. The income growth rate is higher than the state average rate of 25.91% and is higher than the national average rate of 27.36%. Polk county median house value is $112,700 in 2010-2014 and has grown by 46.36% since 2000. The house value growth rate is lower than the state average rate of 52.06% and is about the same as 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 Polk county is better than the state average in quality. The Polk county area code is 417.
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