Trinity Comprehensive School
BALLYMUN ROAD, DUBLIN 9 · D09 TN22 · Roll number 81017A
Trinity Comprehensive School is one of 23 post-primary schools in or within 3 km of Ballymun. Every school in and around Ballymun →
What stands out about Trinity Comprehensive School
- 564 pupils, near the middle for post-primary schools in Ireland (the median is 585).
- About as many pupils as in 2019/20 (+15%).
- Teaches through English, with Irish as a subject.
- In DEIS. DEIS (Delivering Equality of Opportunity in Schools) gives schools serving disadvantaged areas more teachers, money and support; the Department decides which schools are in it.
- A comprehensive school: founded by the State with a church partner, which shares its board.
- Its patron is Minister for Education; its ethos is Catholic.
Pupils over time
2015/16 to 2025/26Trinity Comprehensive School had 564 pupils in 2025/26, against 457 in 2015/16 (+23%). Girls are 50% of them. Its largest roll was 574, in 2024/25. Its roll rose in 7 of the 10 years.
Department of Education enrolments at 30 September each year; girls and boys where the lists give them.
No letter for Trinity Comprehensive School
Ireland publishes no exam results school by school, and section 53 of the Education Act 1998 restricts comparing schools by them, so this school has no letter and nothing here ranks it. Its facts are the Department of Education’s; its inspection reports are linked below.
What the Department of Education does publish for Trinity Comprehensive School is on this page: its pupils each September since 2015/16, girls and boys, its patron and ethos, whether it teaches through Irish, whether it is in DEIS, and its inspection reports.
Newspapers print lists of how many of a school’s leavers go on to college. Those count destinations, not exam results, and depend on who a school takes in; we don’t use them.
Inspection reports on Trinity Comprehensive School
The Department of Education’s Inspectorate visits schools and publishes its reports. The reports describe what inspectors saw; they give no overall grade, and we don’t make one. Reports for this school on gov.ie ↗
Inspectors visit every kind of school. Whole-school evaluations look at teaching and learning, leadership and management; subject inspections look at one subject; follow-through inspections check whether earlier advice was taken. Each report is published on gov.ie with the school’s response.
Getting a place at Trinity Comprehensive School
Every school admits under its own published admission policy; no admissions numbers are published.
Families apply to Trinity Comprehensive School directly, usually in the year before their child finishes sixth class; the school’s yearly admission notice gives the dates for applying and for its decisions.
A school with more applicants than places admits on the criteria in its admission policy, often brothers and sisters, the area it serves and, for post-primary schools, its feeder primaries. A family refused a place can appeal.
It is in DEIS, so it has extra support for pupils from disadvantaged areas.
No figures on applications are published, but the roll shows demand: Trinity Comprehensive School has grown by 15% since 2019/20. All the schools around Ballymun together changed by +4%.
Pupils since 2019/20
Education (Admission to Schools) Act 2018; Department of Education enrolments 2019/20 and 2025/26 (preliminary).
Side by side with the nearest post-primary schools
2025/26The nearest schools of the same kind, as the crow flies: their pupils, ethos and language. No results: none are published.
Of the 6 nearest post-primary schools, 4 have more pupils than Trinity Comprehensive School. Since 2019/20 its roll has changed by +15%; 2 of the 6 grew faster.
| School | Pupils | Since 2019/20 | Ethos | Language | DEIS | Away |
|---|---|---|---|---|---|---|
| Trinity Comprehensive School | 564 | +15% | Catholic | English | ✓ | |
| St. Aidan's C.B.S. | 725 | +1% | Catholic | English | 1.2 km | |
| St Kevins College | 503 | −6% | Catholic | English | ✓ | 1.3 km |
| Beneavin De La Salle College | 585 | +15% | Catholic | English | ✓ | 1.6 km |
| Clonturk College | 968 | +182% | Multi-denominational | English | 1.8 km | |
| Ellenfield Community College | 150 | +3% | Multi-denominational | English | ✓ | 1.8 km |
| St Mary's Secondary School | 830 | +2% | Catholic | English | ✓ | 2 km |
The other 177 post-primary schools in Co. Dublin
| School | Pupils | Since 2019/20 | Ethos | Language | DEIS | Away |
|---|---|---|---|---|---|---|
| Scoil Chaitriona | 523 | +11% | Catholic | All in Irish | ✓ | 2 km |
| Dominican College | 799 | +7% | Catholic | English | 2.2 km | |
| Our Lady Of Mercy College | 407 | +6% | Catholic | English | ✓ | 2.2 km |
| Rosmini Community School | 139 | +16% | Inter-denominational | English | ✓ | 2.6 km |
| Maryfield College | 527 | −11% | Catholic | English | 2.6 km | |
| St Michaels Secondary School | 646 | +4% | Catholic | English | ✓ | 2.6 km |
| St Vincents C.B.S. Glasnevin | 408 | +13% | Catholic | English | ✓ | 2.8 km |
| Coláiste Eoin | 257 | +43% | Multi-denominational | English | ✓ | 3.1 km |
| St. David's College | 550 | +8% | Catholic | English | ✓ | 3.3 km |
| Coolock Community College | 205 | +32% | Multi-denominational | English | ✓ | 3.3 km |
| Cabra Community College | 264 | +102% | Multi-denominational | English | ✓ | 3.4 km |
| Árdscoil Rís | 563 | +4% | Catholic | English | 3.5 km | |
| St Josephs C.B.S. | 310 | +20% | Catholic | English | ✓ | 3.7 km |
| Marino College | 297 | +21% | Multi-denominational | English | ✓ | 3.8 km |
| Mount Temple Comprehensive School | 903 | +2% | Church of Ireland | English | 3.8 km | |
| St Dominics College | 790 | −1% | Catholic | English | 3.8 km | |
| O'Connell School | 222 | +8% | Catholic | English | ✓ | 3.9 km |
| St Declan's College | 651 | +0% | Catholic | English | 3.9 km | |
| Chanel College | 451 | −21% | Catholic | English | ✓ | 3.9 km |
| Coláiste Mhuire | 272 | −4% | Catholic | All in Irish | ✓ | 4 km |
| New Cross College | 417 | +110% | Catholic | English | ✓ | 4 km |
| Belvedere College S.J | 1,011 | +1% | Catholic | English | 4.1 km | |
| St Marys Secondary School | 320 | +0% | Catholic | English | ✓ | 4.3 km |
| Mercy College Coolock | 402 | −6% | Catholic | English | ✓ | 4.3 km |
| Larkin Community College | 403 | +3% | Inter-denominational | English | ✓ | 4.5 km |
| Mount Carmel Secondary School | 386 | −4% | Catholic | English | ✓ | 4.5 km |
| St Josephs Secondary School | 283 | +48% | Catholic | English | ✓ | 4.6 km |
| St Pauls C.B.S. | 244 | +15% | Catholic | English | ✓ | 4.8 km |
| St Pauls College | 650 | +10% | Catholic | English | 5.1 km | |
| C.B.S. Westland Row | 205 | +52% | Catholic | English | ✓ | 5.6 km |
| Holy Faith Secondary School | 647 | +0% | Catholic | English | 5.6 km | |
| The Donahies Community School | 488 | +4% | Inter-denominational | English | ✓ | 5.9 km |
| St Patricks Cathedral Grammar School | 302 | +39% | Church of Ireland | English | 6 km | |
| Ringsend College | 191 | +1% | Multi-denominational | English | ✓ | 6 km |
| Edmund Rice College | 912 | +576% | Catholic | English | 6.1 km | |
| C.B.S. James Street | 251 | +65% | Catholic | English | ✓ | 6.1 km |
| Manor House School | 652 | −5% | Catholic | English | 6.2 km | |
| Árdscoil La Salle | 289 | +74% | Catholic | English | ✓ | 6.2 km |
| Loreto College | 588 | +5% | Catholic | English | 6.2 km | |
| Belmayne Educate Together Secondary School | 595 | +1,883% | Multi-denominational | English | 6.3 km | |
| Presentation College | 262 | +55% | Catholic | English | ✓ | 6.4 km |
| Catholic University School | 544 | +7% | Catholic | English | 6.4 km | |
| Christian Brothers, Synge St. | 256 | −3% | Catholic | English | ✓ | 6.6 km |
| Loreto College | 655 | +4% | Catholic | English | 6.9 km | |
| Marian College | 319 | −8% | Catholic | English | ✓ | 7 km |
| Grange Community College | 553 | +98% | Inter-denominational | English | ✓ | 7.1 km |
| Gaelcholáiste Reachrann | 453 | +2% | Inter-denominational | All in Irish | 7.1 km | |
| Coláiste Choilm | 421 | −23% | Catholic | English | 7.1 km | |
| Mount Sackville Secondary School | 636 | −3% | Catholic | English | 7.2 km | |
| St. Mary's College C.S.Sp., Rathmines | 500 | +17% | Catholic | English | 7.3 km | |
| Le Cheile Secondary School | 944 | +26% | Catholic | English | 7.3 km | |
| St Conleths College | 339 | +19% | Catholic | English | 7.3 km | |
| Mercy Secondary School | 349 | +124% | Catholic | English | ✓ | 7.4 km |
| Loreto College | 320 | −20% | Catholic | English | ✓ | 7.4 km |
| Sandymount Park Educate Together Secondary School | 437 | +460% | Multi-denominational | English | 7.4 km | |
| Castleknock College | 771 | +10% | Catholic | English | 7.5 km | |
| Clogher Road Community College | 297 | +46% | Multi-denominational | English | ✓ | 7.6 km |
| Malahide & Portmarnock Secondary School | 696 | +939% | Multi-denominational | English | 7.6 km | |
| Harolds Cross Educate Together Secondary School | 437 | – | Multi-denominational | English | 7.7 km | |
| Rath Dara Community College | 323 | +28% | Inter-denominational | English | ✓ | 7.8 km |
| Our Lady Of Mercy Secondary School | 289 | −6% | Catholic | English | ✓ | 7.8 km |
| Sandford Park School Ltd | 437 | +8% | Inter-denominational | English | 7.9 km | |
| Kylemore College | 479 | +22% | Multi-denominational | English | ✓ | 7.9 km |
| St Louis High School | 690 | +2% | Catholic | English | 7.9 km | |
| Muckross Park College | 709 | +0% | Catholic | English | 8 km | |
| St. Seton's Secondary School | 741 | – | Other | English | ✓ | 8.1 km |
| Fingal Community College | 864 | +1% | Inter-denominational | English | 8.2 km | |
| Swords Community College | 952 | +473% | Multi-denominational | English | 8.2 km | |
| St Finians Community College | 671 | +4% | Multi-denominational | English | ✓ | 8.5 km |
| Gonzaga College | 576 | +4% | Catholic | English | 8.5 km | |
| St Michaels College | 731 | +10% | Catholic | English | 8.7 km | |
| Pobalscoil Neasáin | 831 | +7% | Inter-denominational | English | 8.7 km | |
| Rosary College | 250 | +35% | Catholic | English | ✓ | 8.7 km |
| Castleknock Community College | 1,318 | +13% | Multi-denominational | English | 8.8 km | |
| Scoil Phobail Chuil Mhin | 1,014 | −1% | Inter-denominational | English | 8.8 km | |
| Malahide Community School | 1,250 | +3% | Inter-denominational | English | 8.9 km | |
| The Teresian School | 230 | +16% | Catholic | English | 8.9 km | |
| Meanscoil Iognáid Rís | 521 | −10% | Catholic | English | ✓ | 8.9 km |
| St Marys Secondary School | 230 | −16% | Catholic | English | 9 km | |
| The Kings Hospital | 732 | +3% | Church of Ireland | English | 9 km | |
| Phobailscoil Iosolde | 764 | −0% | Inter-denominational | English | ✓ | 9 km |
| Assumption Secondary School | 270 | +8% | Catholic | English | ✓ | 9.1 km |
| Alexandra College | 664 | +13% | Church of Ireland | English | 9.2 km | |
| Presentation Community College | 443 | +26% | Catholic | English | 9.2 km | |
| Stratford College | 189 | +28% | Jewish | English | 9.3 km | |
| Blakestown Community School | 563 | +31% | Inter-denominational | English | ✓ | 9.3 km |
| Portmarnock Community School | 955 | +3% | Inter-denominational | English | 9.4 km | |
| St. Fintan's High School | 714 | +1% | Catholic | English | 9.6 km | |
| The High School | 811 | +11% | Church of Ireland | English | 9.7 km | |
| Luttrellstown Community College | 1,027 | +15% | Multi-denominational | English | 9.9 km | |
| Terenure College | 800 | +16% | Catholic | English | 10 km | |
| St Kilian's Deutsche Schule | 475 | +18% | Inter-denominational | English | 10 km | |
| Hartstown Community School | 1,120 | −1% | Inter-denominational | English | 10 km | |
| Templeogue College | 637 | −6% | Catholic | English | 10 km | |
| Our Lady's Grove Secondary School | 295 | −3% | Catholic | English | 10 km | |
| St. Kevin's Community College | 525 | +41% | Inter-denominational | English | ✓ | 10 km |
| St Pauls Secondary School | 466 | +4% | Catholic | English | ✓ | 10 km |
| St Andrews College | 1,011 | +2% | Presbyterian | English | 11 km | |
| Our Ladys School | 799 | +5% | Catholic | English | 11 km | |
| Collinstown Park Community College | 630 | +11% | Inter-denominational | English | ✓ | 11 km |
| Willow Park School | 206 | −0% | Catholic | English | 11 km | |
| De La Salle College | 463 | +45% | Catholic | English | 11 km | |
| Greenhills College | 186 | +36% | Multi-denominational | English | ✓ | 11 km |
| Coláiste Eoin | 517 | +4% | Catholic | All in Irish | 11 km | |
| Coláiste Íosagáin | 488 | +1% | Catholic | All in Irish | 11 km | |
| Santa Sabina Dominican College | 754 | +13% | Catholic | English | 11 km | |
| Blackrock College | 1,041 | +2% | Catholic | English | 11 km | |
| Goatstown Educate Together Secondary School | 366 | – | Multi-denominational | English | 11 km | |
| Gaelcholáiste an Phiarsaigh | 296 | +13% | Multi-denominational | All in Irish | 11 km | |
| Dominican College | 521 | +19% | Catholic | English | 11 km | |
| Loreto High School | 625 | −5% | Catholic | English | 11 km | |
| Mount Anville Secondary School | 726 | +4% | Catholic | English | 11 km | |
| Sutton Park School | 503 | +36% | Church of Ireland | English | 11 km | |
| Coláiste Pobail Setanta | 1,079 | +2% | Multi-denominational | English | 11 km | |
| St Mac Dara's Community College | 915 | +7% | Inter-denominational | English | 11 km | |
| Coláiste de hÍde | 266 | −11% | Multi-denominational | All in Irish | ✓ | 12 km |
| Oatlands College | 623 | +14% | Catholic | English | 12 km | |
| Coláiste Bríde | 993 | +4% | Catholic | English | 12 km | |
| Coláiste Phádraig CBS | 745 | +38% | Catholic | English | 12 km | |
| Tallaght Community School | 840 | +10% | Inter-denominational | English | ✓ | 12 km |
| Kingswood Community College | 1,006 | +93% | Multi-denominational | English | 12 km | |
| Moyle Park College | 763 | +3% | Catholic | English | 12 km | |
| Coláiste Chilliain | 400 | −4% | Multi-denominational | All in Irish | 12 km | |
| Coláiste Éanna | 618 | +3% | Catholic | English | 12 km | |
| Hansfield ETSS | 867 | +34% | Multi-denominational | English | 12 km | |
| Eriu Community College | 193 | – | Multi-denominational | English | 12 km | |
| Sancta Maria College | 577 | +5% | Catholic | English | 12 km | |
| St Benildus College | 949 | +18% | Catholic | English | 12 km | |
| Ballinteer Community School | 415 | +2% | Inter-denominational | English | ✓ | 12 km |
| St Joseph's College | 934 | +6% | Catholic | English | 12 km | |
| Coláiste Cois Life | 592 | −27% | Multi-denominational | All in Irish | 12 km | |
| St. Tiernan's Community School | 368 | +7% | Inter-denominational | English | ✓ | 12 km |
| Kishoge Community College | 937 | +12% | Multi-denominational | English | 12 km | |
| Griffeen Community College | 576 | +317% | Multi-denominational | English | 12 km | |
| St Raphaela's Secondary School | 637 | +12% | Catholic | English | 13 km | |
| Wesley College | 942 | +2% | Methodist | English | 13 km | |
| Newpark Comprehensive School | 884 | +3% | Church of Ireland | English | 13 km | |
| Deansrath Community College | 425 | +43% | Inter-denominational | English | ✓ | 13 km |
| St. Colmcille's Community School | 727 | −0% | Inter-denominational | English | 13 km | |
| Lucan Community College | 966 | +5% | Multi-denominational | English | 13 km | |
| Donabate Community College | 799 | +5% | Multi-denominational | English | 13 km | |
| Rockford Manor Secondary School | 273 | −1% | Catholic | English | 13 km | |
| Christian Brothers College | 549 | +7% | Catholic | English | 14 km | |
| St Marks Community School | 931 | +12% | Inter-denominational | English | ✓ | 14 km |
| St Columba's College | 357 | +7% | Church of Ireland | English | 14 km | |
| Old Bawn Community School | 1,024 | +12% | Inter-denominational | English | 14 km | |
| Firhouse Community College | 825 | +2% | Inter-denominational | English | 14 km | |
| Loreto College Foxrock | 660 | +27% | Catholic | English | 15 km | |
| Adamstown Community College | 981 | +8% | Multi-denominational | English | 15 km | |
| Firhouse Educate Together Secondary School | 411 | +407% | Multi-denominational | English | 15 km | |
| Rockbrook Park School | 186 | +14% | Catholic | English | 15 km | |
| Rosemont School | 307 | +69% | Catholic | English | 15 km | |
| Stepaside Educate Together Secondary School | 741 | +246% | Multi-denominational | English | 15 km | |
| Clonkeen College | 635 | +10% | Catholic | English | 15 km | |
| St Aidan's Community School | 561 | +28% | Inter-denominational | English | ✓ | 15 km |
| Holy Child Community School | 275 | +12% | Inter-denominational | English | ✓ | 15 km |
| Rathdown School | 364 | +38% | Church of Ireland | English | 16 km | |
| Killinarden Community School | 471 | −3% | Inter-denominational | English | ✓ | 16 km |
| Mount Seskin Community College | 350 | +8% | Inter-denominational | English | ✓ | 16 km |
| St Joseph Of Cluny Secondary School | 270 | +7% | Catholic | English | 16 km | |
| Cabinteely Community School | 512 | +12% | Inter-denominational | English | ✓ | 16 km |
| Loreto Abbey Secondary School | 757 | +16% | Catholic | English | 17 km | |
| Coláiste pobail Fóla | 758 | – | Multi-denominational | English | 17 km | |
| Lusk Community College | 1,104 | +61% | Multi-denominational | English | 17 km | |
| St Laurence College | 302 | +17% | Catholic | English | ✓ | 18 km |
| Blackrock Educate Together Secondary School | 236 | – | Multi-denominational | English | 18 km | |
| St Joseph's Secondary School | 945 | +19% | Catholic | English | ✓ | 18 km |
| Holy Child Killiney | 382 | +9% | Catholic | English | 18 km | |
| Holy Family Community School | 998 | +4% | Inter-denominational | English | 19 km | |
| John Scottus Secondary School | 211 | +77% | Inter-denominational | English | 21 km | |
| Woodbrook College | 623 | +51% | Catholic | English | ✓ | 22 km |
| Skerries Community College | 1,025 | +5% | Inter-denominational | English | 23 km | |
| Ardgillan Community College | 1,014 | +6% | Multi-denominational | English | 24 km | |
| Bremore Educate Together Secondary School | 824 | +124% | Multi-denominational | English | 24 km | |
| Coláiste Ghlór na Mara | 520 | +63% | Multi-denominational | All in Irish | 24 km | |
| Balbriggan Community College | 686 | +33% | Inter-denominational | English | ✓ | 25 km |
| Loreto Secondary School | 1,220 | −5% | Catholic | English | 25 km |
Living in Ballymun
The town’s figures, not this street’s.
Homes in the D11 Eircode area
Housing in Ballymun →The median sale price rose from €340,200 in 2023 to €387,500 in 2025 (+14%).
New against second-hand, 2023 to 2025
Property Price Register sales in the D11 Eircode routing area, 2023 to 2025.
Renting in Ballymun
Cost of living in Ballymun →New tenancies in Ballymun averaged €1,840 a month in 2025, against €1,685 in 2024 (+9%).
Residential Tenancies Board rent index, new tenancies, 2024 and 2025.
Location
Directions ↗Ballymun, D09 TN22
Post-primary schools near Trinity Comprehensive School
Nearest first, as the crow flies, up to 25 km. Each school’s own admission policy decides who gets a place.
Questions about Trinity Comprehensive School
Is Trinity Comprehensive School a good school?
We don’t grade it: Ireland publishes no exam results school by school, and section 53 of the Education Act 1998 restricts comparing them. Its inspection reports on gov.ie, a visit and a talk with the principal will tell you more than any table could.
How many pupils does Trinity Comprehensive School have?
564 pupils in 2025/26. That is +15% since 2019/20.
Does Trinity Comprehensive School teach through Irish?
No: Trinity Comprehensive School teaches in English, with Irish as a subject.
Who runs Trinity Comprehensive School?
Trinity Comprehensive School has a Catholic ethos. Its patron is Minister for Education.
How do pupils get a place at Trinity Comprehensive School?
Apply to the school directly. It publishes an admission policy and a yearly admission notice with its dates; if more children apply than it has places, it admits on the criteria in its policy.
Which schools of the same kind are near Trinity Comprehensive School?
The nearest are St. Aidan's C.B.S. (1.2 km), St Kevins College (1.3 km) and Beneavin De La Salle College (1.6 km).
Sources: Department of Education, school lists 2025/26 (preliminary) and enrolments since 2015/16, CC BY 4.0 · inspection reports on gov.ie, linked by roll number. Under Creative Commons Attribution 4.0 (CC BY 4.0).
Facts from the Department of Education’s school lists. Listed with Ballymun; nothing here rates the school.
Contains Central Statistics Office (CSO) data, Census 2022, and Tailte Éireann boundaries (CSO Urban Areas, Small Areas, local electoral areas, constituencies), under Creative Commons Attribution 4.0 (CC BY 4.0).