Portsmouth, New Hampshire Population 2023

22,918

Portsmouth is a city located in Rockingham County New Hampshire. With a 2023 population of 22,918, it is the 7th largest city in New Hampshire and the 1689th largest city in the United States.Portsmouth is currently growing at a rate of 1.43% annually and its population has increased by 4.35% since the most recent census, which recorded a population of 21,963 in 2020. Spanning over 17 miles, Portsmouth has a population density of 1,464 people per square mile.

The average household income in Portsmouth is $112,839 with a poverty rate of 7.39%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Portsmouth is 41.5 years, 40.9 years for males, and 43 years for females.

Portsmouth Demographics

According to the most recent ACS, the racial composition of Portsmouth was:

  • White: 89.54%
  • Asian: 4.84%
  • Two or more races: 2.66%
  • Black or African American: 2.02%
  • Other race: 0.95%
  • Native Hawaiian or Pacific Islander: 0%
  • Native American: 0%
The current population of Portsmouth, New Hampshire is 22,918 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 21,963.

Portsmouth, New Hampshire Population 2023

Population by Race

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White

Asian

Two or more races

Black or African American

Other race

Native Hawaiian or Pacific Islander

Native American

Portsmouth Population by Race

Portsmouth Population Pyramid 2023

Portsmouth Median Age

41.5

Total

40.9

Male

43

Female

Portsmouth Adults

There are 18,084 adults, (4,161 of whom are seniors) in Portsmouth.

Portsmouth Age Dependency

53.8

Age Dependency Ratio

29.9

Old Age Dependency Ratio

23.9

Child Dependency Ratio

Portsmouth Sex Ratio

Female11,08351.75%
Male10,33548.25%

Portsmouth Population by Age

Portsmouth Renter vs Owner Occupied by Household Type

2.8

Average Family Size

2.07

Average Household Size

50.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Portsmouth Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Portsmouth Educational Attainment by Sex (over 25)

Portsmouth Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among islander people with a rate of 100%.

The highest rate of bachelors degrees is among other race people with a rate of 85.96%.

Portsmouth Educational Attainment by Race

All

Male

Female

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$57,596

Average Earnings

$67,643

Average Male

$48,174

Average Female

Portsmouth Earnings by Educational Attainment

Portsmouth Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Portsmouth Language

90.43% of Portsmouth residents speak only English, while 9.57% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 5.67% of the population.

Portsmouth Language

Portsmouth Poverty by Race

rate

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7.39%

Overall Poverty Rate

5.55%

Male Poverty Rate

7.6%

Female Poverty Rate

Poverty in Portsmouth

The race most likely to be in poverty in Portsmouth is Hispanic, with 21.4% below the poverty level.

The race least likely to be in poverty in Portsmouth is Multiple, with 4.14% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.98%. Among those working part-time, it was 8.79%, and for those that did not work, the poverty rate was 16.83%.

Portsmouth Poverty

rate

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Portsmouth Poverty Rate by Education

rate

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Portsmouth Poverty Rate by Employment Status and Sex

Portsmouth Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Portsmouth Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

45.9%

Overall Marriage Rate

45.5%

Male Marriage Rate

46.2%

Female Marriage Rate

Portsmouth Married by Age and Sex

male

female

Portsmouth Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Portsmouth Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Portsmouth Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,366

Number of Veterans

1,245

Male Veterans

121

Female Veterans

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Portsmouth Veterans by War

count

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Portsmouth Veterans by Age

count

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Portsmouth Veterans by Race

Portsmouth Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

6.11%

Veteran Poverty Rate

27.38%

Veteran Disability Rate

Portsmouth Veterans by Education

LaborForceParticipation

69.9%

Labor Force Participation

68%

Employment Rate

1.6%

Unemployment Rate

Portsmouth Employment by Age

LaborForceParticipation

Portsmouth Employment by Race

LaborForceParticipation

Portsmouth Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

35.92%

Born in Portsmouth

89.79%

Native Born

7.73%

Foreign Born

4.04%

Non Citizen

3.68%

Naturalized

Place of Birth

89.79% of Portsmouth residents were born in the United States, with 35.92% having been born in New Hampshire. 4.04% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Portsmouth Place of Birth

Note: data after 2021 is projected based on recent change
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Portsmouth Population by Year