Brookfield is located in northeast Illinois. Brookfield is part of Cook County. Brookfield has 3.06 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Brookfield population is 19,022, which has shrunk 0.33% 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%. Brookfield median household income is $76,735 in 2010-2014 and has grown by 45.78% 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%. Brookfield median house value is $237,900 in 2010-2014 and has grown by 56.93% since 2000. The house value growth rate is much higher than the state average rate of 34.33% and is higher 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 Brookfield is much better than the state average in quality. The Brookfield area code is 708.