Dover is located in southeast New Hampshire. Dover is part of Strafford County. Dover has 26.72 square miles of land area and 2.31 square miles of water area. As of 2010-2014, the total Dover population is 30,332, which has grown 12.83% since 2000. The population growth rate is much higher than the state average rate of 6.90% and is higher than the national average rate of 11.61%. Dover median household income is $60,038 in 2010-2014 and has grown by 36.84% since 2000. The income growth rate is higher than the state average rate of 33.39% and is higher than the national average rate of 27.36%. Dover median house value is $238,700 in 2010-2014 and has grown by 79.74% since 2000. The house value growth rate is about the same as the state average rate of 78.09% and is much 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 Dover is much better than the state average in quality. The Dover area code is 603.