United States
03857 post code
Post code details
1 placeCode
Place
Newmarket
Region
New Hampshire
County
Rockingham
Coordinates
43.0726, -70.9553
Accuracy
4 / 6
Country
United States
Location
OpenStreetMap ↗
43.0726, -70.9553© OpenStreetMap
Places under this code
1| Place | Region | County | Coordinates |
|---|---|---|---|
| Newmarket | New Hampshire | Rockingham | 43.0726, -70.9553 |
Same code in other countries
1| Country | Place | Region |
|---|---|---|
| TR Türkiye | Akören | Afyonkarahisar |
FAQ
Which city is 03857 in?
Newmarket, New Hampshire, United States.
What are the coordinates of 03857?
43.0726, -70.9553
Is 03857 used in other countries?
Yes, 1 other countries.
The data is unofficial and has known truncation; verify with the recipient and carrier for critical shipments. See data source & license → · Updated 2026-11-09. Attribution in