Alpena is located in east South Dakota. Alpena is between the Jerauld, Beadle, Sanborn county. Alpena has 1.63 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Alpena population is 296, which has grown 11.70% since 2000. The population growth rate is higher than the state average rate of 10.58% and is about the same as the national average rate of 11.61%. Alpena median household income is $36,250 in 2010-2014 and has grown by 2.24% since 2000. The income growth rate is much lower than the state average rate of 42.67% and is much lower than the national average rate of 27.36%. Alpena median house value is $43,600 in 2010-2014 and has grown by 47.80% since 2000. The house value growth rate is 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 Alpena is much better than the state average in quality. The Alpena area code is 605.