Portsmouth Flag

Portsmouth

County Seat:
No
Area (mi²):
15.661
State:
New Hampshire

Portsmouth is a city located in Rockingham County, New Hampshire. Portsmouth has a 2026 population of 23,411. Portsmouth is currently growing at a rate of 1.02% annually and its population has increased by 6.46% since the most recent census, which recorded a population of 21,991 in 2020.

The median household income in Portsmouth is $106,219 with a poverty rate of 6.79%. The median age in Portsmouth is 42.9 years: 41.9 years for males, and 45.1 years for females. For every 100 females there are 98.7 males.

23.4K
Total Population
1,495
Density (mi²)
237 1.02%
Growth

Portsmouth Population

Portsmouth Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202623,4112371.02%
202523,1742361.03%
202422,9381750.77%
202322,7631110.49%
202222,6522951.32%
202122,3573661.66%
202021,991320.15%
201921,433430.2%
201821,39000%
201721,3901720.81%
201621,21890.04%
201521,209-53-0.25%
201421,2622411.15%
201321,021490.23%
201220,9721340.64%
201120,838680.33%
201020,770-9-0.04%
200020,784-5,141-19.83%
199025,925-329-1.25%
198026,2545372.09%
197025,717-116-0.45%
196025,8337,00337.19%
195018,8304,00927.05%
194014,8213262.25%
193014,4959266.82%
192013,5692,30020.41%
191011,2696325.94%
190010,6378108.24%
18909,8271371.41%
18809,6904795.2%
18709,211-124-1.33%
18609,335-403-4.14%
18509,7381,85123.47%
18407,887-139-1.73%
18308,0266999.54%
18207,3273935.67%
18106,9341,59529.87%
18005,33961913.11%
17904,72000%

Median Age

Overall: 42.9 years
Female: 45.1 years
Male: 41.9 years

Portsmouth Adults

There are 19,397 adults, (4,946 of whom are seniors) in Portsmouth.

Sex Ratio

Female: 11,344 (50.3%)
Male: 11,201 (49.7%)

Demographics

The racial composition of Portsmouth includes 86.68% White, 4.08% Asian, 3.07% other race, and smaller percentages for Black or African American, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White19,54386.68%
Two or more races1,3045.78%
Asian9194.08%
Other race6923.07%
Black or African American760.34%
Native Hawaiian or Pacific Islander80.04%
Native American30.01%
Race
Population ↓
Percentage (of total)
Two or more races4191.86%
Other race3081.37%
White1120.5%
Black or African American250.11%
Race
Population ↓
Percentage (of total)
White19,43186.19%
Asian9194.08%
Two or more races8853.93%
Other race3841.7%
Black or African American510.23%
Native Hawaiian or Pacific Islander80.04%
Native American30.01%

Portsmouth Marital Status

Economics and Income Statistics

Portsmouth 's average per capita income is $70,946. Household income levels show a median of $106,219. The poverty rate stands at 6.79%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$148,475-
Families$134,831$186,896
Households$106,219$145,403
Non Families$79,655$104,867

$70,946

Average Income

$106,219

Median Household Income

6.79%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)