Castleknock Community College
Castleknock, Dublin
Key facts
- Mixed
- Pupils enrolled
- 1,318 larger than the median Irish post-primary school (585 pupils)
- Girls and boys
- 645 girls, 673 boys
- Ethos
- Multi Denominational
- Teaching through Irish
- No subjects taught through Irish
- Roll number
- 76062B the Department of Education reference for this school
School details
Location
About
Castleknock Community College is a co‑educational post‑primary institution operating under the Dublin and Dún Laoghaire Education and Training Board. Established in 1995, the college serves the growing population of the greater Castleknock area and delivers a comprehensive academic curriculum that balances traditional subjects with a broad programme of extra‑curricular activities. The school’s educational ethos is built around enabling the full intellectual, creative, physical, moral and social development of each pupil, fostering gender equity, self‑awareness and responsible personal relationships. The college provides a range of student supports, including a student‑led Mentor Programme, pastoral care, and a dedicated Language Centre for international learners. Facilities support a vibrant sporting and cultural life, with provisions for construction studies, engineering, music, drama and a variety of clubs. Emphasising high community expectations, the college strives to maintain standards that command respect and pride, while promoting a caring, safe and supportive environment for all learners.
History
Founded in 1995, Castleknock Community College initially operated from temporary accommodation at Hartstown before moving to its permanent site on Carpenterstown Road, Dublin 15. Early milestones included a visit from the Minister for Education in December 1996, the launch of Transition Year and the Leaving Certificate Vocational Programme in 1998, and the establishment of an Adult Education programme the same year. The college quickly expanded its extracurricular profile, with achievements in debating, canoeing, choir competitions and international exchanges. Notable developments over the years have been the introduction of the Mentor Programme (2002), the Language Centre (2005), and a series of sporting successes at Leinster and All‑Ireland levels. The institution continues to evolve, maintaining its commitment to excellence and community engagement.
Applying to Castleknock Community College
For a September 2027 place, a school's formal admissions process cannot begin before 1 October 2026. The school sets its own opening and closing dates in its annual admission notice.
National term dates 2026/27
Irish schools follow a standardised school year, so these nationwide post-primary school dates apply broadly to Castleknock Community College. Individual schools set their own discretionary closure days, confirm exact dates with the school.
- October Mid-Term Break: Mon 26 Oct – Fri 30 Oct 2026
- Christmas Holidays: Wed 23 Dec 2026 – Tue 5 Jan 2027
- February Mid-Term Break: Mon 15 Feb – Fri 19 Feb 2027 (primary schools: Thu 18 Feb – Fri 19 Feb 2027)
- Easter Holidays: Mon 22 Mar – Sun 4 Apr 2027
Primary schools close for the last two days of the February mid-term week and may use discretionary days to take the full week, so their break can be shorter than post-primary schools'.
Frequently asked questions about Castleknock Community College
How many pupils attend Castleknock Community College?
Castleknock Community College has 1,318 pupils enrolled, 645 girls and 673 boys. That makes it larger than the median Irish post-primary school, which has 585 pupils.
Is Castleknock Community College a DEIS school?
No. Castleknock Community College is not part of DEIS, the Department of Education programme of additional supports for schools serving communities at risk of educational disadvantage. Not holding DEIS status says nothing about how good a school is, only about the profile of the community it serves.
What is the ethos of Castleknock Community College?
Castleknock Community College has a Multi Denominational ethos. It is a mixed post-primary school.