Portsmouth, New Hampshire Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Portsmouth, New Hampshire is 22,332 as of the 2023 American Community Survey, making it the 7th-largest city in New Hampshire. The median household income is $105,756, the median home value is $640,600, and the median age is 42.4.
The population has grown 8.1% since 2010 (21,223 → 22,938).
22,332
Population
1426
People / sq mi
$105,756
Median Income
$640,600
Median Home Value
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Portsmouth covers 15.7 sq mi of land at 1426 people per square mile.
About Portsmouth, NH
Portsmouth is distinguished by its share of foreign-born residents, 51.9% of the population. With 22,332 residents, Portsmouth is a city in New Hampshire. It is the #7-largest of all cities in New Hampshire nationally.
Households take in a median $105,756, comfortably above the US median of $78,538. The poverty rate, 2.7%, is on the lower side for US cities and below the national 12.4%. A typical home is worth $640,600, with typical rent around $1,778.
Degree attainment is near the top of the range for US cities: 63.4% of adults 25+ hold a bachelor’s, above the 35.0% national rate. A solid 20.7% of workers are based at home, above the national 14.0%, and the average commute runs about 22 minutes each way.
The large foreign-born share is a defining thread in Portsmouth, shaping language, household composition, and the labor force behind the economic figures above.
Portsmouth city Population History (2010-2024)
The city of Portsmouth city had a population of 21,223 in 2010 and 22,938 in 2024, a 8.1% growth over 14 years. The peak was 22,938 in 2024. Average annual growth rate: 0.56%.
22,938
Population (2024)
21,223
Population (2010)
22,938
Peak (2024)
0.56%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 21,223 |
| 2011 | 21,288 |
| 2012 | 21,418 |
| 2013 | 21,465 |
| 2014 | 21,702 |
| 2015 | 21,646 |
| 2016 | 21,648 |
| 2017 | 21,824 |
| 2018 | 21,839 |
| 2019 | 21,927 |
| 2020 | 21,991 |
| 2021 | 22,357 |
| 2022 | 22,652 |
| 2023 | 22,763 |
| 2024 | 22,938 |
Race & Ethnicity
| White | 87.6% |
| Black or African American | 1.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Economy & Income
$105,756
Median Household Income
$69,569
Per Capita Income
2.7%
Poverty Rate
1.4%
Unemployment Rate
Housing
$640,600
Median Home Value
$1,778
Median Rent
52.1%
Owner-Occupied
Education
97.6%
High School+
63.4%
Bachelor's+
Commute
1.2%
Drive Alone
67.0%
Public Transit
20.7%
Work From Home
22.1 min
Avg Commute
Community Profile
51.9%
Foreign Born
90.9%
Non-English at Home
7.2%
Veterans
12.1%
With Disability
96.1%
Health Insurance
96.8%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 19.6% |
| Finance, Insurance & Real Estate | 18.2% |
| Manufacturing | 11.1% |
| Information | 10.6% |
| Education, Health Care & Social Services | 9.7% |
| Arts, Entertainment & Food Services | 3.9% |
| Transportation & Warehousing | 3.5% |
| Public Administration | 3.1% |
| Construction | 3.0% |
| Retail Trade | 2.8% |
| Agriculture & Mining | 0.6% |
Largest cities in New Hampshire
Largest counties in New Hampshire
Part of New Hampshire
Metro areas in New Hampshire
City rankings
Frequently Asked Questions
Portsmouth, New Hampshire has a population of 22,332 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 7th-largest city in New Hampshire.
The median household income in Portsmouth, New Hampshire is $105,756, with 2.7% of residents living below the federal poverty level.
The median home value in Portsmouth, New Hampshire is $640,600, with median monthly rent at $1,778 and a homeownership rate of 52.1%.
The median age in Portsmouth, New Hampshire is 42.4 years. The population is 48.9% male and 51.1% female.
The population has grown 8.1% since 2010 (21,223 → 22,938).
Portsmouth city, NH Climate
Portsmouth city, NH has an average annual temperature of 8.9°C (48°F) and receives about 1098 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
8.9°C
Avg Temp
1098
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -4° / 25° | 88 mm |
| February | -3° / 27° | 80 mm |
| March | 2° / 36° | 92 mm |
| April | 7° / 45° | 103 mm |
| May | 13° / 56° | 89 mm |
| June | 19° / 65° | 84 mm |
| July | 22° / 71° | 80 mm |
| August | 21° / 69° | 83 mm |
| September | 16° / 61° | 88 mm |
| October | 10° / 50° | 102 mm |
| November | 5° / 41° | 113 mm |
| December | -1° / 30° | 96 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Portsmouth city, NH
The most comfortable months to visit Portsmouth city, NH are typically August, July and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 28°C high). The coldest is January (near -9°C low). November is usually the wettest month.
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Statewide data for New Hampshire
Population, race, income, age, and trends across New Hampshire
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.