Portsmouth zipcode
| City | Portsmouth |
| ZIP Code | 03803 |
| Type | Company/Organization |
| State Code | NH |
| State | New Hampshire |
ZIP code of Portsmouth is 03803. This place is located in New Hampshire state in US. To send any postal service to Portsmouth, you must use 03803 zipcode.
You should avoid following 1 city name of New Hampshire to be used with the ZIP code 03803.
- Air National Guard, NH