| District Name | Mamaroneck Union Free School District |
| State | New York |
| County | Westchester County |
| Statistical Area | New York-Newark-Jersey City, NY-NJ-PA |
| Total Students (2021) | 5465 |
| District Growth Rate (2017-21) | 0.2% |
| Majority Race/Ethnicty | White (67.1%) |
| Free/Reduced Lunch Program | 17.37% |