Yonkers's School 21 is a Public School, Magnet school Serving students in Grades PK-06.
55.70% of students at this school are Hispanic
| Grades Offered | Grades PK-06 |
| Total Students | 456 |
| Student:Teacher ratio | 20:1 |
| Gender % | 57.02 % Male / 42.98 % Female |
| Total Classroom Teachers | 23.00 |
| Student Population at School 21 by Grade | |
| Magnet School | |
| Charter School | |
| Shared School | |
| Title 1 Eligible |