Where is Portsmouth, New Hampshire, USA?

Written and fact-checked by | Reviewed by WhereIG Editorial Team | Last updated: August 14, 2026, 18:45 ET

Where is Portsmouth Located? - Portsmouth is a city located in the Rockingham County of New Hampshire, United States. Portsmouth lies between 38.9939872 Degrees North latitudes and 80.2320276 Degrees West longitudes.

Location Map of Portsmouth, New Hampshire

Where is Portsmouth, New Hampshire

Portsmouth Map, New Hampshire, USA

Where is Portsmouth?: The Google Map showing the location of Portsmouth in the U.S. state of New Hampshire.

Where is Portsmouth Located?

Portsmouth is a city located in the Rockingham County of New Hampshire, United States. Portsmouth lies between 38.9939872 Degrees North latitudes and 80.2320276 Degrees West longitudes. According to 2020 U.S.census, the population of Portsmouth city is 21956 people and the city has a total area of 15.66 sq mi. The city has numerous parks and recreational facilities.

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Portsmouth, New Hampshire Quick Facts

AttributeDetails
CityPortsmouth
CountyRockingham County
StateNew Hampshire
State CapitalConcord
US RegionNortheastern United States (New England Region)
Latitude43.0718° N
Longitude70.7626° W
Elevation49 ft (15 m)
Land Area15.62 sq mi
Water Area5.42 sq mi
Total Area21.04 sq mi
Population (2020 Census)21,956
Population DensityApproximately 1,406 people per sq mi
ZIP Codes03801, 03802, 03803, 03804
Area Code603
Time Zone StandardEastern Standard Time (EST, UTC−5)
Time Zone DaylightEastern Daylight Time (EDT, UTC−4)
CurrencyUnited States Dollar (USD)
FIPS Code33-62900
Congressional DistrictNew Hampshire's 1st Congressional District

Transportation and Connectivity in Portsmouth

CategoryDetails
Airport NamePortsmouth International Airport at Pease
IATA CodePSM
PortPort of Portsmouth on Piscataqua River
Major HighwaysInterstate 95, U.S. Route 1, U.S. Route 4, New Hampshire Route 16
Train/Amtrak ServiceNearest Amtrak Downeaster service in Dover
Local Bus/Transit ServiceCOAST Bus public transportation
  • Interstate 95 – Major highway connecting Portsmouth with Boston, Maine, and the Northeast corridor.
  • U.S. Route 1 – Historic coastal route providing access through the Seacoast region.
  • U.S. Route 4 – Regional highway connecting Portsmouth with inland New Hampshire communities.
  • New Hampshire Route 16 – Important route connecting Portsmouth with the Lakes Region and northern New Hampshire.

Top Places to Visit in Portsmouth, New Hampshire

Landmark NameType
Strawbery Banke MuseumHistoric Museum
Prescott ParkWaterfront Park
USS Albacore MuseumMaritime Museum
Portsmouth Harbor LighthouseHistoric Lighthouse
Market SquareHistoric Downtown Area
Music HallHistoric Performing Arts Venue
Fort Constitution Historic SiteHistoric Landmark
Odiorne Point State ParkState Park
Great Bay National Wildlife RefugeWildlife Area
Prescott Park Arts FestivalCultural Event Venue

Driving Distances from Portsmouth, New Hampshire to Nearby Cities

CityStateDistance (mi)Approx. Drive Time
DoverNew Hampshire1220 minutes
RochesterNew Hampshire2535 minutes
ManchesterNew Hampshire551 hour
ConcordNew Hampshire601 hour
BostonMassachusetts551 hour
PortlandMaine551 hour
SalemMassachusetts4550 minutes
WorcesterMassachusetts1001 hour 45 minutes
BurlingtonVermont1703 hours
ProvidenceRhode Island1001 hour 45 minutes

Colleges and Universities Near Portsmouth, New Hampshire

Institution NameTypeLevelNotable For
University of New HampshirePublicUniversityResearch, marine science, agriculture, and liberal arts
Great Bay Community CollegePublicCommunity CollegeTechnical education, workforce programs, and associate degrees
Southern New Hampshire UniversityPrivateUniversityBusiness, online education, and professional programs
New England CollegePrivateCollegeLiberal arts and graduate programs
University of MainePublicUniversityResearch, engineering, and sciences
Portsmouth School DistrictPublicK–12 DistrictPrimary and secondary education

Waterbodies in Portsmouth, New Hampshire

Piscataqua River, Portsmouth Harbor, Atlantic Ocean, Great Bay, Sagamore Creek, and nearby tidal waterways of the New Hampshire Seacoast region.

Golf Courses Near Portsmouth

Wentworth by the Sea Country Club, Portsmouth Country Club, Pease Golf Course, Sagamore Golf Center, and Breakfast Hill Golf Club.

Portsmouth, New Hampshire — Key Historical Facts

  • Portsmouth was founded in 1623 and is one of the oldest European settlements in New Hampshire.
  • The city developed as an important colonial seaport because of its location on the Piscataqua River and access to the Atlantic Ocean.
  • Portsmouth played a significant role in shipbuilding and maritime trade during the colonial period.
  • The Portsmouth Naval Shipyard, established in 1800, became an important naval facility for the United States.
  • Today, Portsmouth is known for its historic downtown, maritime heritage, cultural attractions, waterfront areas, and role as a regional center in the Seacoast area.

References

More New Hampshire Maps & Info

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