Frankfort is located in east South Dakota. Frankfort is part of Spink County. Frankfort has 0.79 square miles of land area and has no water area. As of 2010-2014, the total Frankfort population is 144, which has shrunk 13.25% 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%. Frankfort median household income is $48,594 in 2010-2014 and has grown by 60.08% since 2000. The income growth rate is higher than the state average rate of 42.67% and is much higher than the national average rate of 27.36%. Frankfort median house value is $30,000 in 2010-2014 and has grown by 200.03% since 2000. The house value growth rate is much higher than the state average rate of 70.48% 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 Frankfort is much better than the state average in quality. The Frankfort area code is 605.