Spencer is located in east Idaho. Spencer is part of Clark County. Spencer has 1.12 square miles of land area and has no water area. As of 2010-2014, the total Spencer population is 17, which has shrunk 55.26% since 2000. The population growth rate is much lower than the state average rate of 23.61% and is much lower than the national average rate of 11.61%. Spencer median household income is $19,167 in 2010-2014 and has has shrunk by 12.38% since 2000. The income growth rate is much lower than the state average rate of 25.98% and is much lower than the national average rate of 27.36%. Spencer median house value is $227,800 in 2010-2014 and has shrunk by -301.76% since 2000. The house value growth rate is much higher than the state average rate of 50.99% 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 Spencer is close to the state average in quality. The Spencer area code is 208.