Algonquin is located in north Illinois. Algonquin is between the Mchenry, Kane county. Algonquin has 12.23 square miles of land area and 0.18 square miles of water area. As of 2010-2014, the total Algonquin population is 30,189, which has grown 29.70% 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%. Algonquin median household income is $100,534 in 2010-2014 and has grown by 26.09% since 2000. The income growth rate is higher than the state average rate of 22.70% and is about the same as the national average rate of 27.36%. Algonquin median house value is $242,200 in 2010-2014 and has grown by 24.14% since 2000. The house value growth rate is lower than the state average rate of 34.33% and is much 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 Algonquin is close to the state average in quality. The Algonquin area code is 847.