Washington county is located in northeast Oklahoma. Washington county has 415.45 square miles of land area and 8.81 square miles of water area. As of 2010-2014, the total Washington county population is 51,564, which has grown 5.24% since 2000. The population growth rate is much lower than the state average rate of 10.67% and is much lower than the national average rate of 11.61%. Washington county median household income is $48,870 in 2010-2014 and has grown by 36.45% since 2000. The income growth rate is lower than the state average rate of 38.43% and is higher than the national average rate of 27.36%. Washington county median house value is $109,900 in 2010-2014 and has grown by 74.44% since 2000. The house value growth rate is higher than the state average rate of 62.66% and is much 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 Washington county is much better than the state average in quality. The Washington county area code is 918.
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