Newmarket, NH
ZIP Codes in Newmarket, New Hampshire
December 26, 2025
| ZIP Code | Population | Coordinates |
|---|---|---|
| 03857 | 9,400 | 43.0709, -70.9469 |
Newmarket has 1 ZIP code
ZIP Codes in Newmarket, New Hampshire
December 26, 2025
| ZIP Code | Population | Coordinates |
|---|---|---|
| 03857 | 9,400 | 43.0709, -70.9469 |