New London, NH zip code
New London, New Hampshire uses one zip code: 03257. Most of it is in Merrimack County. Together these zip codes are home to about 4.5K people.
Zip codes
1
Population
4.5K
All zips combined
Largest zip
03257
4,484 residents
Zip codes in New London
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 03257 | 4,484 | $107,000 |