Waterville is located in southwest Maine. Waterville is part of Kennebec County. Waterville has 13.58 square miles of land area and 0.47 square miles of water area. As of 2010-2014, the total Waterville population is 15,886, which has grown 1.80% since 2000. The population growth rate is lower than the state average rate of 4.21% and is much lower than the national average rate of 11.61%. Waterville median household income is $31,995 in 2010-2014 and has grown by 19.31% since 2000. The income growth rate is much lower than the state average rate of 31.05% and is lower than the national average rate of 27.36%. Waterville median house value is $129,500 in 2010-2014 and has grown by 64.97% since 2000. The house value growth rate is lower than the state average rate of 75.89% 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 Waterville is close to the state average in quality. The Waterville area code is 207.