Macomb is located in west Illinois. Macomb is part of Mcdonough County. Macomb has 10.69 square miles of land area and 0.43 square miles of water area. As of 2010-2014, the total Macomb population is 19,193, which has grown 3.42% 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%. Macomb median household income is $27,007 in 2010-2014 and has grown by 3.90% 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%. Macomb median house value is $95,000 in 2010-2014 and has grown by 36.49% 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 Macomb is much better than the state average in quality. The Macomb area code is 309.