ZIP Code 03859 is located in Newton Junction New Hampshire. 03859 is entirely within Rockingham County. Regionally, 03859 is located in the Southern New Hampshire Region.
| ZIP Code Name | Newton Junction |
| Primary County | Rockingham County |
| ZIP Code Type | PO Box |
| Current Time | EDT |
| Coordinates | 42.86354828,-71.06184387 |
| Adjacent ZIP Codes | |
| Region | Southern New Hampshire Region |
| Metropolitan/Micropolitan Stat Area | Boston-Cambridge-Newton, MA-NH |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| US Congressional Districts in 03859 | |
| New Hampshire State Senate Districts in 03859 | |
| New Hampshire House of Representatives Districts in 03859 |