Arlington is located in north Oregon. Arlington is part of Gilliam County. Arlington has 1.78 square miles of land area and 0.62 square miles of water area. As of 2010-2014, the total Arlington population is 563, which has grown 7.44% since 2000. The population growth rate is much lower than the state average rate of 14.00% and is lower than the national average rate of 11.61%. Arlington median household income is $56,176 in 2010-2014 and has grown by 57.29% since 2000. The income growth rate is much higher than the state average rate of 23.47% and is much higher than the national average rate of 27.36%. Arlington median house value is $127,700 in 2010-2014 and has grown by 65.41% since 2000. The house value growth rate is higher than the state average rate of 53.91% 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 Arlington is much better than the state average in quality. The Arlington area code is 541.