Portsmouth is a city in Rockingham County, New Hampshire, home to about 22,545 people across 16 square miles. Its ZIP code is 03801.
Homes sold for a median of $534 per square foot in the three months ending August 2026, a seller’s market.
Mostly Portsmouth; also Newington
Each card is that ZIP code’s whole market, including any part outside Portsmouth. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Portsmouth’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Portland International Jetport (PWM)47 miles away |
|---|---|
| Closer regional airport | Portsmouth International Airport at Pease (PSM)1 mile away |
| Nearest city of 250,000+ | Boston, MA52 miles away |
| Nearest city of 1 million+ | New York, NY232 miles away |
Straight-line distances from the center of Portsmouth; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Portsmouth had 21,956 residents in the 2020 census, up 6% since 2000.
It’s the 13th largest of 242 towns in New Hampshire by population.
Rockingham County grew from 51,118 residents in 1900 to 314,176 in 2020.
Rockingham County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 81°F in summer, and winter lows average 16°F. About 50.9 inches of rain and melted snow fall in a typical year, with about 65 inches of snow.
Source: NOAA 1991–2020 climate normals, Greenland, NH weather station (4 miles away).
152,257 jobs at 10,266 businesses in Rockingham County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1,240 doctors and other health care providers list an office in Portsmouth.
Nearest hospitals
Providers with an office here
| Primary care doctors | 89 |
|---|---|
| Specialist doctors | 208 |
| Dentists | 72 |
| Nurse practitioners and physician assistants | 182 |
| Mental health providers | 510 |
| Physical and occupational therapists | 127 |
| Optometrists | 28 |
| Chiropractors | 24 |
| Pharmacies | 10 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (21 nearby)
Grocery stores (9 nearby)
Pharmacies (1 nearby)
Libraries (4 nearby)
Museums (10 nearby)
Theaters and performance venues (6 nearby)
Counts are within about 3 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1630.
Sports teams
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Portsmouth School District, Newington School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| PEEP School - Pre School ProgramPortsmouth | Pre-K | 24 | Public | 2.7 mi |
| Little Harbour SchoolPortsmouth | K–5 | 325 | Public | 2.7 mi |
| Mary C. Dondero Elementary SchoolPortsmouth | K–5 | 328 | Public | 3.1 mi |
| New Franklin SchoolPortsmouth | K–5 | 247 | Public | 1.5 mi |
| Newington Public SchoolNewington | K–6 | 43 | Public | 2.6 mi |
| Portsmouth Middle SchoolPortsmouth | 6–8 | 486 | Public | 2.3 mi |
| Portsmouth High SchoolPortsmouth | 9–13 | 1,017 | Public | 2.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Patrick AcademyPortsmouth | Pre-K–8 | 216 | Roman Catholic | 2.3 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Newington.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.