New Castle, NH zip code
New Castle, New Hampshire uses one zip code: 03854. Most of it is in Rockingham County. Together these zip codes are home to about 827 people.
Zip codes
1
Population
827
All zips combined
Largest zip
03854
827 residents
Zip codes in New Castle
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 03854 | 827 | $176,953 |