Johnson County
Johnson county is located in east Iowa. Johnson county has 614.04 square miles of land area and 9.11 square miles of water area. As of 2010-2014, the total Johnson county population is 136,802, which has grown 23.24% since 2000. The population growth rate is much higher than the state average rate of 5.19% and is much higher than the national average rate of 11.61%. Johnson county median household income is $54,985 in 2010-2014 and has grown by 37.26% since 2000. The income growth rate is higher than the state average rate of 33.56% and is higher than the national average rate of 27.36%. Johnson county median house value is $191,900 in 2010-2014 and has grown by 45.93% since 2000. The house value growth rate is lower than the state average rate of 53.09% 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 Johnson county is much better than the state average in quality. The Johnson county area code is 319.
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