Buffalo is located in northwest Oklahoma. Buffalo is part of Harper County. Buffalo has 0.80 square miles of land area and has no water area. As of 2010-2014, the total Buffalo population is 1,397, which has grown 16.42% since 2000. The population growth rate is much higher than the state average rate of 10.67% and is higher than the national average rate of 11.61%. Buffalo median household income is $41,094 in 2010-2014 and has grown by 35.03% 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%. Buffalo median house value is $63,300 in 2010-2014 and has grown by 79.83% 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 Buffalo is worse than the state average in quality. The Buffalo area code is 580.