| Roll number | 91550B |
| Address | Dysartbeigh, Mountrath, Co. Laois |
| Principal | Miss Siobhan Mc Carthy |
| Website | www.mountrathcs.ie |
| principal@mountrathcs.ie | |
| Phone | 0578741080 |
| Ethos | Inter Denominational |
| Gender | Mixed |
| Enrolment total | 750 |
| Enrolment boys | 392 |
| Enrolment girls | 358 |