Johnson is located close to the center of Oklahoma. Johnson is part of Pottawatomie County. Johnson has 3.94 square miles of land area and 0.00 square miles of water area. As of 2010-2014, the total Johnson population is 251, which has grown 12.56% since 2000. The population growth rate is higher than the state average rate of 10.67% and is higher than the national average rate of 11.61%. Johnson median household income is $48,750 in 2010-2014 and has grown by 65.46% since 2000. The income growth rate is much higher than the state average rate of 38.43% and is much higher than the national average rate of 27.36%. Johnson median house value is $75,900 in 2010-2014 and has grown by 1.20% since 2000. The house value growth rate is much lower than the state average rate of 62.66% and is much lower 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 Johnson is better than the state average in quality.