Peterborough is located in south New Hampshire. Peterborough is part of Hillsborough County. Peterborough has 4.74 square miles of land area and 0.02 square miles of water area. As of 2010-2014, the total Peterborough population is 2,993, which has grown 1.66% 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%. Peterborough median household income is $39,755 in 2010-2014 and has has shrunk by 12.27% since 2000. The income growth rate is much lower than the state average rate of 33.39% and is much lower than the national average rate of 27.36%. Peterborough median house value is $238,500 in 2010-2014 and has shrunk by -104.72% since 2000. The house value growth rate is higher than 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 Peterborough is much better than the state average in quality. The Peterborough area code is 603.