Arnold, MO
Arnold is located in east Missouri. Arnold is part of Jefferson County. Arnold has 11.58 square miles of land area and 0.36 square miles of water area. As of 2010-2014, the total Arnold population is 21,020, which has grown 5.28% since 2000. The population growth rate is lower than the state average rate of 7.74% and is much lower than the national average rate of 11.61%. Arnold median household income is $56,329 in 2010-2014 and has grown by 19.37% since 2000. The income growth rate is lower than the state average rate of 25.91% and is lower than the national average rate of 27.36%. Arnold median house value is $145,900 in 2010-2014 and has grown by 49.95% since 2000. The house value growth rate is about the same as the state average rate of 52.06% and is higher than 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 Arnold is much better than the state average in quality. The Arnold area code is 636.
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