Buffalo is located in west South Dakota. Buffalo is part of Harding County. Buffalo has 0.55 square miles of land area and has no water area. As of 2010-2014, the total Buffalo population is 358, which has shrunk 5.79% since 2000. The population growth rate is much lower than the state average rate of 10.58% and is much lower than the national average rate of 11.61%. Buffalo median household income is $47,500 in 2010-2014 and has grown by 117.14% since 2000. The income growth rate is much higher than the state average rate of 42.67% and is much higher than the national average rate of 27.36%. Buffalo median house value is $65,000 in 2010-2014 and has grown by 46.73% since 2000. The house value growth rate is much lower than the state average rate of 70.48% 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 Buffalo is much better than the state average in quality. The Buffalo area code is 605.