Mount Sackville Secondary School, St Mary's Diocesan School or Castleknock College?
Up to three schools, side by side.
| Mount Sackville Secondary SchoolRemove | St Mary's Diocesan SchoolRemove | Castleknock CollegeRemove | |
|---|---|---|---|
| Town | Dublin 20, Co. Dublin | Drogheda, Co. Louth | Dublin 15, Co. Dublin |
| Students | 636 | 917 | 771 |
| Type | Voluntary secondary school | Voluntary secondary school | Voluntary secondary school |
| Fees | Fee‑paying | Free | Fee‑paying |
| Next open night or deadline | Applications close, Wed, 21 Oct | Applications close, Thu, 22 Oct | Applications close, Thu, 22 Oct |
| Boys and girls | Girls | Boys | Boys |
| Ethos | Catholic | Catholic | Catholic |
| Taught through | English | English | English |
| Transition Year | Most students take it | Looks optional | Most students take it |
| Day or boarding | Day | Day | Day |
| DEIS | No | No | No |
| Distance from the first school | 38.8 km | 1.2 km | |
| Roll number | 60120W | 63841E | 60100Q |
| Inspection reports | Read on gov.ie for Mount Sackville Secondary School | Read on gov.ie for St Mary's Diocesan School | Read on gov.ie for Castleknock College |
Follow all 3 schools' dates. Get a notification the day before an open night, and before applications close.
On iPhone: tap Share, then Add to Home Screen, and open secondaryschool.ie from there to turn on notifications. Or use your calendar below.
Or add their dates to your calendar. New dates appear as we find them:
Figures from the Department of Education's latest published data. Distances are in a straight line. How to choose a secondary school.