Marshall is located in southeast Illinois. Marshall is between the Clark, Edgar county. Marshall has 3.72 square miles of land area and 0.02 square miles of water area. As of 2010-2014, the total Marshall population is 3,895, which has grown 3.29% since 2000. The population growth rate is about the same as the state average rate of 3.62% and is much lower than the national average rate of 11.61%. Marshall median household income is $49,231 in 2010-2014 and has grown by 47.34% since 2000. The income growth rate is much higher than the state average rate of 22.70% and is much higher than the national average rate of 27.36%. Marshall median house value is $86,800 in 2010-2014 and has grown by 27.65% since 2000. The house value growth rate is 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 Marshall is better than the state average in quality. The Marshall area code is 217.