Johnson is located in northwest Arkansas. Johnson is part of Washington County. Johnson has 3.76 square miles of land area and 0.04 square miles of water area. As of 2010-2014, the total Johnson population is 3,509, which has grown 51.32% since 2000. The population growth rate is much higher than the state average rate of 10.24% and is much higher than the national average rate of 11.61%. Johnson median household income is $42,143 in 2010-2014 and has has shrunk by 5.42% since 2000. The income growth rate is much lower than the state average rate of 28.22% and is much lower than the national average rate of 27.36%. Johnson median house value is $162,200 in 2010-2014 and has shrunk by -46.52% since 2000. The house value growth rate is lower than the state average rate of 49.31% 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 is better than the state average in quality. The Johnson area code is 479.