From a total population of 20,443, Portsmouth has a median age of 41.5. The average age of males, in Portsmouth, is 38.3 while the average age of females is 44.5. When you compare this to median age of New Hampshire, Portsmouth is 0.3 years younger.
The median income of individuals, in Portsmouth, is $42,724 while the average household income is $67,679. When comparing the median income of people living in Portsmouth to the rest of New Hampshire, the average income in Portsmouth is $8,903 more.