How many pupils go to St Thomas Senior NS?

St Thomas Senior NS has 331 pupils: 163 boys and 168 girls, according to the Department of Education's latest figures.

Is St Thomas Senior NS a mixed school?

Yes. St Thomas Senior NS takes both boys and girls.

What is the ethos of St Thomas Senior NS?

St Thomas Senior NS has a Catholic ethos. The ethos is set by the school's patron and shapes religious education and some admission rules.

Does St Thomas Senior NS teach through Irish?

No. St Thomas Senior NS teaches through English, with Irish taught as a subject.

Is St Thomas Senior NS a DEIS school?

Yes. St Thomas Senior NS is part of the DEIS programme, which gives extra support to schools in disadvantaged areas.

Where can I read St Thomas Senior NS's inspection reports?

The Department of Education publishes school inspection reports on gov.ie. Search there by St Thomas Senior NS's roll number, 19765O, or use the link on this page.

What other primary schools are near St Thomas Senior NS?

The closest is St Thomas Junior NS. The table on this page compares the nearest schools by distance, size, ethos and language.

St Thomas Senior NS

Dublin 24, Co. Dublin

331 pupilsMixedCatholicDEIS

Work-to-rule: no supervision before or after school while it lasts. Check with the school. What it means

At a glance

St Thomas Senior NS is a primary school in Dublin 24, Co. Dublin (Eircode D24 YN90). John Rennick is the principal of St Thomas Senior NS, according to the Department of Education's 2025/26 schools list.

Pupils: 331
Boys and girls: Mixed · 163 boys, 168 girls
Ethos: Catholic
Language: English-medium
DEIS: Yes, part of the DEIS programme
Type: Mainstream
Roll number: 19765O

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

Compare with another school

Explained: what DEIS means · school ethos · how admissions work · how to choose a school

Starting junior infants in September 2027

We haven't found St Thomas Senior NS's junior infant enrolment dates for September 2027 yet. Most primary schools take applications in the autumn and winter before; the school's admission notice has the exact window.

We check school websites every week and add dates as soon as they're published.

When can my child start school? · How admissions work

Questions parents ask

Where is St Thomas Senior NS?: St Thomas Senior NS is a primary school in Dublin 24, Co. Dublin (Eircode D24 YN90).
Who is the principal of St Thomas Senior NS?: John Rennick is the principal of St Thomas Senior NS, according to the Department of Education's 2025/26 schools list.
How many pupils go to St Thomas Senior NS?: St Thomas Senior NS has 331 pupils: 163 boys and 168 girls, according to the Department of Education's latest figures.
Is St Thomas Senior NS a mixed school?: Yes. St Thomas Senior NS takes both boys and girls.
What is the ethos of St Thomas Senior NS?: St Thomas Senior NS has a Catholic ethos. The ethos is set by the school's patron and shapes religious education and some admission rules.
Does St Thomas Senior NS teach through Irish?: No. St Thomas Senior NS teaches through English, with Irish taught as a subject.
Is St Thomas Senior NS a DEIS school?: Yes. St Thomas Senior NS is part of the DEIS programme, which gives extra support to schools in disadvantaged areas.
Where can I read St Thomas Senior NS's inspection reports?: The Department of Education publishes school inspection reports on gov.ie. Search there by St Thomas Senior NS's roll number, 19765O, or use the link on this page.
What other primary schools are near St Thomas Senior NS?: The closest is St Thomas Junior NS. The table on this page compares the nearest schools by distance, size, ethos and language.

Closest schools

St Thomas Senior NS compared with other schools in the area
School	Distance	Pupils	Boys and girls	Ethos	Irish-medium	DEIS
St Thomas Senior NSThis school		331	Mixed	Catholic	No	Yes
St Thomas Junior NSDublin 24	100 m	300	Mixed	Catholic	No	Yes
Scoil Cnoc Mhuire JuniorDublin 24	700 m	141	Mixed	Catholic	No	Yes
Scoil Chaitlin MaudeDublin 24	700 m	284	Mixed	Multi-denominational	Yes	Yes
Scoil Cnoc Mhuire SinDublin 24	800 m	145	Mixed	Catholic	No	Yes
Tallaght Community National SchoolDublin 24	800 m	151	Mixed	Multi-denominational	No	Yes
St Aidans NSDublin 24	800 m	244	Mixed	Catholic	No	Yes

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

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Contact

Jobstown
Tallaght
Dublin 24
D24YN90

Principal: John Rennick on the Department of Education's 2025/26 schools list
Phone: 01 452 6555
Email: [email protected]
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Secondary schools near here

For 5th and 6th class families: open nights, application dates and costs for the secondary schools closest to St Thomas Senior NS, on our sister site.

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Next school holidays

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 18 weeksFebruary mid-term breakThu, 18 February to Fri 19 February 2027

These dates are set for every primary school in Ireland. Check with St Thomas Senior NS for any extra days off and the last day in June. Get reminders · All term dates · Add to Google Calendar