Berlin is located in north New Hampshire. Berlin is part of Coos County. Berlin has 61.62 square miles of land area and 0.85 square miles of water area. As of 2010-2014, the total Berlin population is 9,710, which has shrunk 6.01% since 2000. The population growth rate is much lower than the state average rate of 6.90% and is much lower than the national average rate of 11.61%. Berlin median household income is $36,358 in 2010-2014 and has grown by 22.64% since 2000. The income growth rate is lower than the state average rate of 33.39% and is lower than the national average rate of 27.36%. Berlin median house value is $89,400 in 2010-2014 and has grown by 51.27% since 2000. The house value growth rate is much lower than the state average rate of 78.09% 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 Berlin is much better than the state average in quality. The Berlin area code is 603.