Portsmouth is located in southeast New Hampshire. Portsmouth is between the Rockingham, Strafford county. Portsmouth has 15.63 square miles of land area and 1.21 square miles of water area. As of 2010, the total Portsmouth population is 20,779, which has shrunk 0.02% since 2000. The population growth rate is much lower than the state average rate of 6.53% and is much lower than the national average rate of 9.71%. Portsmouth median household income is $62,191 in 2006-2010 and has grown by 37.61% since 2000. The income growth rate is much higher than the state average rate of 23.40% and is much higher than the national average rate of 19.17%. Portsmouth median house value is $317,800 in 2006-2010 and has grown by 88.49% since 2000. The house value growth rate is higher than the state average rate of 82.30% and is much higher than the national average rate of 50.42%. 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 Portsmouth is much better than the state average in quality. The Portsmouth area code is 603.
Portsmouth, NH Map, Border, and Nearby Locations
* Based on the U.S. 2010 Data