Cottleville is located in east Missouri. Cottleville is part of Saint Charles County. Cottleville has 4.46 square miles of land area and has no water area. As of 2010-2014, the total Cottleville population is 3,492, which has grown 81.12% since 2000. The population growth rate is much higher than the state average rate of 7.74% and is much higher than the national average rate of 11.61%. Cottleville median household income is $97,596 in 2010-2014 and has grown by 31.53% since 2000. The income growth rate is higher than the state average rate of 25.91% and is higher than the national average rate of 27.36%. Cottleville median house value is $247,500 in 2010-2014 and has grown by 40.39% since 2000. The house value growth rate is lower than the state average rate of 52.06% 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 Cottleville is much better than the state average in quality. The Cottleville area code is 636.