Spencer is located in east South Dakota. Spencer is between the Mccook, Hanson county. Spencer has 0.27 square miles of land area and has no water area. As of 2010-2014, the total Spencer population is 141, which has shrunk 10.19% 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%. Spencer median household income is $36,250 in 2010-2014 and has grown by 70.59% 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%. Spencer median house value is $51,800 in 2010-2014 and has grown by 69.28% since 2000. The house value growth rate is about the same as the state average rate of 70.48% and is 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 Spencer is much better than the state average in quality. The Spencer area code is 605.