| District Name | New Castle School District |
| State | New Hampshire |
| County | Rockingham County |
| Statistical Area | Boston-Cambridge-Newton, MA-NH |
| Cities/Towns | New Castle |
| Total Students (2021) | 36 |
| District Growth Rate (2017-21) | -26.5% |
| Majority Race/Ethnicty | White (86.1%) |
| Free/Reduced Lunch Program | 8.33% |