Geneseo is located in northwest Illinois. Geneseo is part of Henry County. Geneseo has 4.39 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Geneseo population is 6,500, which has grown 0.31% since 2000. The population growth rate is lower than the state average rate of 3.62% and is much lower than the national average rate of 11.61%. Geneseo median household income is $55,400 in 2010-2014 and has grown by 35.92% since 2000. The income growth rate is much higher than the state average rate of 22.70% and is higher than the national average rate of 27.36%. Geneseo median house value is $132,300 in 2010-2014 and has grown by 32.70% since 2000. The house value growth rate is about the same as the state average rate of 34.33% and is 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 Geneseo is much better than the state average in quality. The Geneseo area code is 309.