Newmarket, NH ZIP Codes, Coordinates & Counties
Newmarket, New Hampshire has 1 ZIP code in Rockingham county. The approximate center of Newmarket is 43.069, -70.952. Newmarket has about 19,515 known street addresses.
ZIP codes in Newmarket, NH
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 03857 | Rockingham | 43.069 | -70.952 |
Counties Newmarket spans
Rockingham
Most common streets in Newmarket
Bennett, Main, Bay, Grant, Exeter, Kent, Elm, Willey, New, Maple
Frequently asked questions
What ZIP codes are in Newmarket, NH?
Newmarket, New Hampshire has 1 ZIP code, ranging from 03857 to 03857. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Newmarket, NH in?
Newmarket is in Rockingham county.
What are the latitude and longitude of Newmarket, NH?
The approximate center of Newmarket, New Hampshire is latitude 43.069, longitude -70.952. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Newmarket, NH have?
Newmarket has 1 ZIP code.
How many addresses are in Newmarket, NH?
Newmarket, New Hampshire has about 19,515 known street addresses in the sthan.io US address database.
What are the most common streets in Newmarket, NH?
Some of the most common street names in Newmarket are Bennett, Main, Bay, Grant, Exeter, Kent.
What cities are near Newmarket, NH?
Cities near Newmarket include Newfields (2 mi), Lee (4 mi), Durham (4 mi), Stratham (4 mi), Epping (6 mi).
Cities near Newmarket
Newfields, NH (2 mi) Lee, NH (4 mi) Durham, NH (4 mi) Stratham, NH (4 mi) Epping, NH (6 mi) Greenland, NH (6 mi) Exeter, NH (7 mi) Madbury, NH (7 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database