Somersworth, NH ZIP Codes, Coordinates & Counties
Somersworth, New Hampshire has 1 ZIP code in Strafford county. The approximate center of Somersworth is 43.253, -70.885. Somersworth has about 30,882 known street addresses.
ZIP codes in Somersworth, NH
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 03878 | Strafford | 43.253 | -70.885 |
Counties Somersworth spans
Strafford
Most common streets in Somersworth
High, Sherwood, Green, Maplewood, Main, Government, Canal, Maple, Route 108, Franklin
Frequently asked questions
What ZIP codes are in Somersworth, NH?
Somersworth, New Hampshire has 1 ZIP code, ranging from 03878 to 03878. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Somersworth, NH in?
Somersworth is in Strafford county.
What are the latitude and longitude of Somersworth, NH?
The approximate center of Somersworth, New Hampshire is latitude 43.253, longitude -70.885. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Somersworth, NH have?
Somersworth has 1 ZIP code.
How many addresses are in Somersworth, NH?
Somersworth, New Hampshire has about 30,882 known street addresses in the sthan.io US address database.
What are the most common streets in Somersworth, NH?
Some of the most common street names in Somersworth are High, Sherwood, Green, Maplewood, Main, Government.
What cities are near Somersworth, NH?
Cities near Somersworth include Rollinsford (3 mi), Berwick (4 mi), Dover (4 mi), Rochester (5 mi), Madbury (6 mi).
Cities near Somersworth
Rollinsford, NH (3 mi) Berwick, ME (4 mi) Dover, NH (4 mi) Rochester, NH (5 mi) Madbury, NH (6 mi) South Berwick, ME (7 mi) Barrington, NH (8 mi) North Berwick, ME (8 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database