| Roll Number | 62380M |
| Local name of school | ST. MARY'S HIGH SCHOOL, MIDLETON |
| School Level | POST PRIMARY |
| School Level Detail | SECONDARY |
| Principal's Name | UAS. DONNACHA O'BRIAIN |
| Ethos | CATHOLIC |
| Gender | GIRLS |
| Language of Instruction | NO SUBJECTS TAUGHT THROUGH IRISH |
| DEIS Indicator | NO |
| Transition Year Indicator | YES |
| Enrolment Total | 767 |
| Enrolment Boys | 0 |
| Enrolment Girls | 767 |
| Free Education Indicator | YES |
| Fee Charging Indicator | NO |
| Day/Boarding | NA |
| Inspection Reports |
Reports |