Postal reference
ZIP 03857, New Hampshire
ZIP code 03857 is associated with Newmarket in New Hampshire in the GeoNames postal reference.
Reference details
- State
- New Hampshire (NH)
- ZIP code
- 03857
- Associated localities
- Newmarket
- County names in postal records
- Rockingham
- Approximate postal point
- 43.0726, -70.9553
View point on map ↗
Postal information is adapted from GeoNames, CC BY 4.0. Locality associations and coordinates are approximate, not ZIP boundaries or a guarantee of current mail delivery.