Cambridge is located in northwest Illinois. Cambridge is part of Henry County. Cambridge has 2.14 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Cambridge population is 2,189, which has grown 0.41% 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%. Cambridge median household income is $52,536 in 2010-2014 and has grown by 35.98% 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%. Cambridge median house value is $102,200 in 2010-2014 and has grown by 38.11% 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 Cambridge is close to the state average in quality. The Cambridge area code is 309.