Stillwater is located in southeast Minnesota. Stillwater is part of Washington County. Stillwater has 6.96 square miles of land area and 1.02 square miles of water area. As of 2010-2014, the total Stillwater population is 18,541, which has grown 22.44% since 2000. The population growth rate is much higher than the state average rate of 9.44% and is much higher than the national average rate of 11.61%. Stillwater median household income is $75,200 in 2010-2014 and has grown by 31.57% since 2000. The income growth rate is higher than the state average rate of 29.12% and is higher than the national average rate of 27.36%. Stillwater median house value is $239,800 in 2010-2014 and has grown by 53.52% since 2000. The house value growth rate is about the same as the state average rate of 51.31% 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 Stillwater is much better than the state average in quality. The Stillwater area code is 651.