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SCOIL THOMAIS

Roll number: 19769W Laurel Lodge, Castleknock, Dublin 15

School details

Address: Laurel Lodge, Castleknock, Dublin 15 (D15VW02)
Email: [email protected]
Phone: 018201022
Principal: Mary McGarry
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Fingal County Council
School patron: Archbishop of Dublin
School type: Ordinary with Special Classes
School level: All-Through School
Planning area: Carpenterstown_D15

Preliminary data

The latest year shown (2025/26) is preliminary and subject to revision when the official enrolment figures are released by the Department of Education.

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1993/94: 169 in 1983/84 → 859, +690 pupils.
Biggest loss in a single year: 2003/04: 835 in 2002/03 → 777, -58 pupils.
Largest single-class increase: 5th Class in 2022/23 (77 → 100, +23).
Largest single-class decrease: 3rd Class in 2021/22 (103 → 73, -30).
Largest cohort-step gain: 2nd → 3rd in 2022/23 (81 → 85, +4).
Largest cohort-step loss: JI → SI in 2023/24 (83 → 79, -4).
Overall: 50 (1981/82) → 622 (2025/26 (preliminary)), 572.

Summary statistics (class-level data)

Min / max / mean enrolment per class across the available years (2020/21–2024/25; preliminary year excluded from class stats).

Class	Min	Max	Mean	Years
Junior Infants	67	95	81.4	5
Senior Infants	65	93	79.4	5
1st Class	75	90	82.0	5
2nd Class	75	93	81.8	5
3rd Class	73	103	83.6	5
4th Class	76	101	84.4	5
5th Class	74	105	88.2	5
6th Class	73	103	87.0	5
Total	50	970	696.4	36

Total enrolment over time

Total and gender trends use historical records where available. Class-level data starts in 2020/21.

Enrolment by gender over time

Enrolment by class over time

Cohort progression

Base cohort:

Track how each cohort (pupils who were in the same class in the same year) progresses through the school. Each step shows the count; the number between steps is the net change (pupils gained minus pupils lost).

Cohort 2020/21

JI 2020/21 78

SI 2021/22 78

-3

1st 2022/23 75

2nd 2023/24 75

-2

3rd 2024/25 73

Cohort 2021/22

JI 2021/22 95

-2

SI 2022/23 93

-3

1st 2023/24 90

2nd 2024/25 93

Cohort 2022/23

JI 2022/23 83

-4

SI 2023/24 79

-2

1st 2024/25 77

Cohort 2023/24

JI 2023/24 67

-2

SI 2024/25 65

Cohort 2024/25

JI 2024/25 84

Raw data by year

Years marked (preliminary) are subject to revision when official data are published.

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1981/82	19	31	–	–	–	–	–	–	–	–	50
1982/83	60	74	–	–	–	–	–	–	–	–	134
1983/84	81	88	–	–	–	–	–	–	–	–	169
1993/94	419	440	–	–	–	–	–	–	–	–	859
1994/95	419	440	–	–	–	–	–	–	–	–	859
1995/96	427	447	–	–	–	–	–	–	–	–	874
1996/97	454	469	–	–	–	–	–	–	–	–	923
1997/98	467	495	–	–	–	–	–	–	–	–	962
1998/99	461	509	–	–	–	–	–	–	–	–	970
1999/00	436	478	–	–	–	–	–	–	–	–	914
2000/01	420	466	–	–	–	–	–	–	–	–	886
2001/02	407	447	–	–	–	–	–	–	–	–	854
2002/03	392	443	–	–	–	–	–	–	–	–	835
2003/04	366	411	–	–	–	–	–	–	–	–	777
2004/05	322	413	–	–	–	–	–	–	–	–	735
2005/06	321	393	–	–	–	–	–	–	–	–	714
2006/07	315	363	–	–	–	–	–	–	–	–	678
2007/08	323	352	–	–	–	–	–	–	–	–	675
2008/09	316	332	–	–	–	–	–	–	–	–	648
2009/10	325	341	–	–	–	–	–	–	–	–	666
2010/11	331	339	–	–	–	–	–	–	–	–	670
2011/12	328	351	–	–	–	–	–	–	–	–	679
2012/13	331	350	–	–	–	–	–	–	–	–	681
2013/14	339	348	–	–	–	–	–	–	–	–	687
2014/15	350	345	–	–	–	–	–	–	–	–	695
2015/16	346	347	–	–	–	–	–	–	–	–	693
2016/17	330	375	–	–	–	–	–	–	–	–	705
2017/18	327	366	–	–	–	–	–	–	–	–	693
2018/19	330	378	–	–	–	–	–	–	–	–	708
2019/20	333	373	–	–	–	–	–	–	–	–	706
2020/21	321	370	78	82	84	75	103	80	105	84	691
2021/22	324	368	95	78	84	81	73	101	77	103	692
2022/23	313	362	83	93	75	85	85	76	100	78	675
2023/24	305	348	67	79	90	75	84	81	74	97	653
2024/25	303	337	84	65	77	93	73	84	85	73	640
2025/26 (preliminary)	298	324	–	–	–	–	–	–	–	–	622