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 2025 population of 23,227. Portsmouth is currently growing at a rate of 1.07% annually and its population has increased by 5.62% since the most recent census, which recorded a population of 21,992 in 2020.

The average household income in Portsmouth is $143,256 with a poverty rate of 5.5%.The median age in Portsmouth is 42.4 years: 41.4 years for males, and 44.4 years for females.

23.2K
Total Population
1,483
Density (mi²)
247 1.07%
Growth

Portsmouth Population

Portsmouth Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Portsmouth includes 87.63% White, 3.92% Asian, and smaller percentages for other race, Black or African American, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White19,56987.63%
Two or more races1,0544.72%
Asian8753.92%
Other race5782.59%
Black or African American2371.06%
Native Hawaiian or Pacific Islander110.05%
Native American80.04%

Portsmouth Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Portsmouth's average per capita income is $71,848. Household income levels show a median of $105,756. The poverty rate stands at 5.5%.

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$146,649-
Families$139,847$181,396
Households$105,756$143,256
Non Families$83,014$103,482

$71,848

Average Income

$105,756

Median Household Income

5.5%

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)