Simpson is located in south Illinois. Simpson is between the Johnson, Pope county. Simpson has 0.53 square miles of land area and 0.00 square miles of water area. As of 2010-2014, the total Simpson population is 107, which has grown 98.15% 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%. Simpson median household income is $20,000 in 2010-2014 and has has shrunk by 13.51% 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%. Simpson median house value is $75,000 in 2010-2014 and has shrunk by -93.30% since 2000. The house value growth rate is much higher than the state average rate of 34.33% 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 Simpson is close to the state average in quality. The Simpson area code is 618.