Saybrook is located close to the center of Illinois. Saybrook is part of Mclean County. Saybrook has 0.78 square miles of land area and 0.03 square miles of water area. As of 2010-2014, the total Saybrook population is 789, which has grown 3.27% 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%. Saybrook median household income is $53,056 in 2010-2014 and has grown by 40.44% 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%. Saybrook median house value is $85,200 in 2010-2014 and has grown by 27.35% 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 Saybrook is close to the state average in quality. The Saybrook area code is 309.