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ST BRIGIDS SCHOOL

Roll number: 16573N Trafalgar Road, Greystones, Co. Wicklow

School details

Address: Trafalgar Road, Greystones, Co. Wicklow (A63WR64)
Email: [email protected]
Phone: 012876113
Principal: Máire Costello
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Wicklow County Council
School patron: Archbishop of Dublin
School type: Ordinary
School level: All-Through School
Planning area: Greystones

Class size history

Mainstream class group data is shown separately from standard/year-group enrolment data. The source does not identify which standard/year group each class group belongs to.

Average class size

24.38

2025/26

Mainstream classes

2025/26

Largest class group

2025/26

Classes with 30+ pupils

2025/26

Class group metrics trend

Class group metrics by year

Year	Mainstream class pupils	Mainstream classes	Average class size	Largest class	Classes 30+
2006/07	367	13	28.23	33	6
2007/08	422	15	28.13	32	4
2008/09	424	16	26.50	30	2
2009/10	452	16	28.25	38	7
2010/11	476	17	28.00	32	7
2011/12	472	17	27.76	31	6
2012/13	489	17	28.76	36	6
2013/14	493	18	27.39	35	4
2014/15	500	18	27.78	35	9
2015/16	510	18	28.33	32	8
2016/17	525	19	27.63	33	8
2017/18	511	19	26.89	33	8
2019/20	493	19	25.95	32	3
2020/21	468	19	24.63	32	3
2021/22	455	18	25.28	32	3
2022/23	450	18	25.00	30	2
2023/24	414	18	23.00	29	0
2024/25	389	17	22.88	29	0
2025/26	390	16	24.38	29	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2006/07: 311 in 2005/06 → 367, +56 pupils.
Biggest loss in a single year: 1977/78: 546 in 1976/77 → 496, -50 pupils.
Largest single-class increase: 6th Class in 2022/23 (57 → 80, +23).
Largest single-class decrease: 4th Class in 2021/22 (77 → 63, -14).
Largest cohort-step gain: 1st → 2nd in 2025/26 (40 → 46, +6).
Largest cohort-step loss: 1st → 2nd in 2023/24 (58 → 56, -2).
Overall: 490 (1974/75) → 396 (2025/26), -94.

Summary statistics (class-level data)

Min / max / mean enrolment per class across the available final by-standard years.

Class	Min	Max	Mean	Years
Junior Infants	35	49	41.3	6
Senior Infants	39	54	44.3	6
1st Class	40	58	48.3	6
2nd Class	46	56	51.8	6
3rd Class	51	63	56.2	6
4th Class	53	77	60.5	6
5th Class	54	80	62.2	6
6th Class	56	80	64.0	6
Total	297	546	440.7	43

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 49

SI 2021/22 54

1st 2022/23 58

-2

2nd 2023/24 56

3rd 2024/25 58

4th 2025/26 58

Cohort 2021/22

JI 2021/22 43

SI 2022/23 45

1st 2023/24 45

2nd 2024/25 49

3rd 2025/26 51

Cohort 2022/23

JI 2022/23 36

SI 2023/24 39

1st 2024/25 40

2nd 2025/26 46

Cohort 2023/24

JI 2023/24 36

SI 2024/25 41

1st 2025/26 43

Cohort 2024/25

JI 2024/25 35

SI 2025/26 39

Cohort 2025/26

JI 2025/26 49

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	342	148	–	–	–	–	–	–	–	–	490
1975/76	–	–	–	–	–	–	–	–	–	–	513
1976/77	382	164	–	–	–	–	–	–	–	–	546
1977/78	358	138	–	–	–	–	–	–	–	–	496
1978/79	356	127	–	–	–	–	–	–	–	–	483
1979/80	346	109	–	–	–	–	–	–	–	–	455
1980/81	375	94	–	–	–	–	–	–	–	–	469
1981/82	385	74	–	–	–	–	–	–	–	–	459
1982/83	405	51	–	–	–	–	–	–	–	–	456
1983/84	408	45	–	–	–	–	–	–	–	–	453
1993/94	423	37	–	–	–	–	–	–	–	–	460
1994/95	411	49	–	–	–	–	–	–	–	–	460
1995/96	409	48	–	–	–	–	–	–	–	–	457
1996/97	395	59	–	–	–	–	–	–	–	–	454
1997/98	393	48	–	–	–	–	–	–	–	–	441
1998/99	350	41	–	–	–	–	–	–	–	–	391
1999/00	313	52	–	–	–	–	–	–	–	–	365
2000/01	252	67	–	–	–	–	–	–	–	–	319
2001/02	219	91	–	–	–	–	–	–	–	–	310
2002/03	190	107	–	–	–	–	–	–	–	–	297
2003/04	191	134	–	–	–	–	–	–	–	–	325
2004/05	183	144	–	–	–	–	–	–	–	–	327
2005/06	169	142	–	–	–	–	–	–	–	–	311
2006/07	200	167	–	–	–	–	–	–	–	–	367
2007/08	228	194	–	–	–	–	–	–	–	–	422
2008/09	229	195	–	–	–	–	–	–	–	–	424
2009/10	230	222	–	–	–	–	–	–	–	–	452
2010/11	244	232	–	–	–	–	–	–	–	–	476
2011/12	246	226	–	–	–	–	–	–	–	–	472
2012/13	254	235	–	–	–	–	–	–	–	–	489
2013/14	262	231	–	–	–	–	–	–	–	–	493
2014/15	266	234	–	–	–	–	–	–	–	–	500
2015/16	270	240	–	–	–	–	–	–	–	–	510
2016/17	277	248	–	–	–	–	–	–	–	–	525
2017/18	280	231	–	–	–	–	–	–	–	–	511
2018/19	272	236	–	–	–	–	–	–	–	–	508
2019/20	266	227	–	–	–	–	–	–	–	–	493
2020/21	257	211	49	48	54	55	63	77	59	63	468
2021/22	240	215	43	54	50	55	53	63	80	57	455
2022/23	239	211	36	45	58	50	58	56	67	80	450
2023/24	206	208	36	39	45	56	54	56	59	69	414
2024/25	190	199	35	41	40	49	58	53	54	59	389
2025/26	199	197	49	39	43	46	51	58	54	56	396