ZIP Code 03803: Portsmouth, NH
Portsmouth in Rockingham County, New Hampshire uses ZIP code 03803. Its reference point is at latitude 42.927 and longitude -71.4448 (42°55'37.2"N 71°26'41.3"W).
Location Overview of ZIP Code 03803
Portsmouth has 10 ZIP codes in our directory, and Rockingham County has 50.
New Hampshire has 296 ZIP codes listed in total.
The nearest listed ZIP code is 03103 in Manchester, about 2.7 mi to the north.
| ZIP code | 03803 |
|---|---|
| Place | Portsmouth |
| County | Rockingham County |
| State | New Hampshire |
| Country | United States |
| Latitude | 42.927 |
| Longitude | -71.4448 |
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Map of ZIP Code 03803
Map centred on 42.927, -71.4448. The pin marks the ZIP code's reference point, not its boundary.
Photos of Portsmouth, New Hampshire
Video: Portsmouth, New Hampshire
Top 10 Best Things to Do in Portsmouth, New Hampshire [Portsmouth Travel Guide 2025] — by DoTravel · Watch on YouTube
ZIP Codes Near 03803
These 16 ZIP codes have the closest reference points to 03803, measured in a straight line.
Nearby Cities and Towns
The closest places to ZIP code 03803, measured in a straight line from its reference point. Road distances will be longer.
- Bedford – 4.0 mi west
- Merrimack – 5.4 mi southwest
- Londonderry – 5.5 mi southeast
- Manchester – 5.8 mi northwest
- Litchfield – 5.8 mi south
- Auburn – 6.8 mi northeast
- Derry – 7.7 mi east
- Goffstown – 9.0 mi northwest
- Hooksett – 9.3 mi north
Schools Near Portsmouth
School places are usually allocated by home address, so families living around ZIP code 03803 should confirm their catchment school with the local education authority for Portsmouth, Rockingham County.
Looking at nearby areas such as Manchester, Bedford and Merrimack widens the choice of state, private and international schools. The links below open live Google Maps results centred on this location.
Parks and Outdoor Recreation
Parks, playgrounds and walking trails around Portsmouth are easiest to find on the map above or with the searches below, which are centred on ZIP code 03803.
Hospitals and Healthcare
Hospitals, clinics and pharmacies serving Portsmouth can be found with the searches below. In an emergency in the United States, call 911.
Residents may also use facilities in nearby Manchester, Bedford and Merrimack.
Shopping and Dining in Portsmouth
Restaurants, supermarkets and shopping centres in and around Portsmouth are listed in the Google Maps searches below, with current opening hours and reviews.
Libraries and Historical Places
Public libraries, museums and historic sites near Portsmouth, New Hampshire can be found with the searches below.
For local history, try the archives of Rockingham County along with the name Portsmouth.
Roads, Rivers and Lakes
From ZIP code 03803, Manchester lies about 2.7 mi to the north, Bedford lies about 4.0 mi to the west, Merrimack lies about 5.4 mi to the southwest, Londonderry lies about 5.5 mi to the southeast and Litchfield lies about 5.8 mi to the south in a straight line. Use the directions link for routes and road names.
Rivers, lakes and coastline near Portsmouth show up on the map above, or you can search for them directly.
Frequently Asked Questions About ZIP Code 03803
Photo & Video Credits
- Photo 1 (“Manchester NH, April 2007 (2500971860)”): Šarūnas Burdulis from USA, CC BY 2.0, via Wikimedia Commons.
- Photo 2 (“SettlementMarker”): Jonathan Zdziarski, Public domain, via Wikimedia Commons.
- Video: “Top 10 Best Things to Do in Portsmouth, New Hampshire [Portsmouth Travel Guide 2025]” by DoTravel, embedded from YouTube. All rights belong to the creator.
Photos are shown from their original source under the licenses listed. They were taken near this location and may show neighbouring areas.
Data for ZIP code 03803 comes from GeoNames and is provided for general reference. Always confirm mailing details with the U.S. Postal Service (USPS).