Romeoville is located in northeast Illinois. Romeoville is part of Will County. Romeoville has 18.44 square miles of land area and 0.32 square miles of water area. As of 2010-2014, the total Romeoville population is 39,675, which has grown 87.56% 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%. Romeoville median household income is $66,705 in 2010-2014 and has grown by 9.82% 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%. Romeoville median house value is $167,300 in 2010-2014 and has grown by 41.66% since 2000. The house value growth rate is higher than 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 Romeoville is close to the state average in quality. The Romeoville area code is 815.