Who is the principal of Castleknock Community College?

John Cronin is the principal of Castleknock Community College, according to the Department of Education's 2025/26 schools list.

Is Castleknock Community College a mixed school?

Yes. Castleknock Community College takes both boys and girls.

Is Castleknock Community College fee-paying?

No. Castleknock Community College is in the free education scheme, so there are no tuition fees. Like most schools it may ask for a voluntary contribution, which can't be compulsory.

What is the ethos of Castleknock Community College?

Castleknock Community College has a Multi-denominational ethos. Its patron is Dublin & Dún Laoghaire ETB.

Does Castleknock Community College teach through Irish?

No. Castleknock Community College teaches through English, with Irish taught as a subject.

Is Castleknock Community College a DEIS school?

No. Castleknock Community College is not part of the DEIS programme.

Where can I read Castleknock Community College's inspection reports?

The Department of Education publishes school inspection reports on gov.ie. Search there by Castleknock Community College's roll number, 76062B, or use the link on this page.

What other secondary schools are near Castleknock Community College?

The closest is Luttrellstown Community College. The table on this page compares the nearest schools by distance, size, type and fees.

Castleknock Community College

Dublin 15, Co. Dublin

1,318 studentsMixedCommunity college (ETB)TY optional

Strike: most secondary schools are expected to close on Wednesday, 21 October. Work-to-rule: some evening events, including open nights, may not go ahead. Check with the school. What it means

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Open night and deadlines Compare with others

Applying for September 2027

Applications open: Thursday, 1 October (passed)In person to main office only
Applications close: Thursday, 22 October, 12pmIn person to main office onlyAdd to calendar
Offers by: Wednesday, 11 NovemberAdd to calendar
Accept by: Wednesday, 25 November, 12pmAdd to calendar

From the school's website (1), the school's website (2), checked 17 October. Always confirm with the school.

Never miss a date. Get a notification the day before an open night, and before applications close.

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How secondary admissions work · Open nights in Co. Dublin

Students this year

1,318 students: 645 girls and 673 boys, by year group. Department of Education, 2025/26.

1st year: 245
2nd year: 210
3rd year: 240
TY: 196
5th year: 212
6th year: 215

Transition Year: 196 students are in Transition Year, fewer than in 3rd year (240). That usually means TY is optional here.

What it costs

Tuition fees: None. The school is in the free education scheme.
Schoolbooks: Free in every year, including TY, under the free schoolbooks scheme.

We haven't found this school's voluntary contribution or device policy yet. What secondary school costs, and the schemes that help

At a glance

Castleknock Community College is a community college (etb) in Dublin 15, Co. Dublin (Eircode D15 A996). Castleknock Community College has 1,318 students: 673 boys and 645 girls, according to the Department of Education's 2025/26 figures.

Type: Community college (ETB)
Boys and girls: Mixed · 673 boys, 645 girls
Fees: Free education scheme, no tuition fees
Ethos: Multi-denominational
Patron: Dublin & Dún Laoghaire ETB
Language: English-medium
Day or boarding: Day school
DEIS: No
Roll number: 76062B

Inspection reports for this school from the Department of Education, on gov.ie

Explained: types of school · how to choose

Questions parents ask

Where is Castleknock Community College?: Castleknock Community College is a community college (etb) in Dublin 15, Co. Dublin (Eircode D15 A996).
How many students go to Castleknock Community College?: Castleknock Community College has 1,318 students: 673 boys and 645 girls, according to the Department of Education's 2025/26 figures.
Who is the principal of Castleknock Community College?: John Cronin is the principal of Castleknock Community College, according to the Department of Education's 2025/26 schools list.
Is Castleknock Community College a mixed school?: Yes. Castleknock Community College takes both boys and girls.
Is Castleknock Community College fee-paying?: No. Castleknock Community College is in the free education scheme, so there are no tuition fees. Like most schools it may ask for a voluntary contribution, which can't be compulsory.
What is the ethos of Castleknock Community College?: Castleknock Community College has a Multi-denominational ethos. Its patron is Dublin & Dún Laoghaire ETB.
Does Castleknock Community College teach through Irish?: No. Castleknock Community College teaches through English, with Irish taught as a subject.
Does Castleknock Community College have Transition Year?: 196 students are in Transition Year, fewer than in 3rd year (240). That usually means TY is optional here.
Is Castleknock Community College a DEIS school?: No. Castleknock Community College is not part of the DEIS programme.
Where can I read Castleknock Community College's inspection reports?: The Department of Education publishes school inspection reports on gov.ie. Search there by Castleknock Community College's roll number, 76062B, or use the link on this page.
What other secondary schools are near Castleknock Community College?: The closest is Luttrellstown Community College. The table on this page compares the nearest schools by distance, size, type and fees.

Closest secondary schools

Castleknock Community College compared with other schools in the area
School	Distance	Students	Boys and girls	Type	Fees	Next date	Irish-medium	DEIS
Castleknock Community CollegeThis school		1,318	Mixed	Community college (ETB)	Free	Applications close, Thu, 22 Oct	No	No
Luttrellstown Community CollegeDublin 15	1.2 km	1,027	Mixed	Community college (ETB)	Free	Applications close, Thu, 22 Oct	No	No
The Kings HospitalDublin 20	1.5 km	732	Mixed	Secondary	Fee‑paying	None found yet	No	No
Castleknock CollegeDublin 15	1.5 km	771	Boys	Secondary	Fee‑paying	Applications close, Thu, 22 Oct	No	No
Scoil Phobail Chuil MhinDublin 15	1.9 km	1,014	Mixed	Community school	Free	None found yet	No	No
Le Cheile Secondary SchoolDublin 15	2.3 km	944	Mixed	Secondary	Free	Applications close, Thu, 22 Oct	No	No
St Kevin's Community CollegeDublin 22	2.3 km	525	Mixed	Community college (ETB)	Free	Applications close, Fri, 23 Oct	No	Yes

Straight-line distances. Compare with the two closest · See more schools near here.

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Contact

Carpenterstown Road
Castleknock
Dublin 15
D15A996

Principal: John Cronin on the Department of Education's 2025/26 schools list
Phone: 01 822 1626
Email: [email protected]
Website: castleknockcc.ie
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Primary schools nearby

On our sister site, primaryschool.ie

Next school holidays

Strike: most secondary schools are expected to close on Wednesday, 21 October. Strikes and work-to-rule

In 8 daysOctober mid-term breakMon, 26 October to Fri 30 October 2026
In 9 weeksChristmas holidaysWed 23 December 2026 to Tue 5 January 2027
In 17 weeksFebruary mid-term breakMon, 15 February to Fri 19 February 2027

These dates are set for every secondary school in Ireland. Check with Castleknock Community College for any extra days off and the last day in June. Get reminders · All term dates · Add to Google Calendar