Logan is located in south Illinois. Logan is part of Franklin County. Logan has 1.01 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Logan population is 312, which has grown 467.27% since 2000. The population growth rate is much higher than the state average rate of 3.62% and is much higher than the national average rate of 11.61%. Logan median household income is $35,156 in 2010-2014 and has has shrunk by 23.99% since 2000. The income growth rate is much lower than the state average rate of 22.70% and is much lower than the national average rate of 27.36%. Logan median house value is $45,300 in 2010-2014 and has shrunk by 46.71% since 2000. The house value growth rate is much lower than the state average rate of 34.33% and is much lower 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 Logan is worse than the state average in quality. The Logan area code is 618.