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S N SAN VINSEANN CAILIN

Roll number: 15056L North William Street, Dublin 1

School details

Address: North William Street, Dublin 1 (D01XT04)
Email: [email protected]
Phone: 018740048
Principal: Margaret O'Connor
Ethos: Catholic
DEIS: Y
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Dublin City Council
School patron: Archbishop of Dublin
School type: Ordinary with Special Classes
School level: All-Through School
Planning area: Drumcondra_Marino_Dublin1

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

16.83

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
2006/07	211	13	16.23	22
2007/08	221	13	17.00	23
2008/09	219	13	16.85	23
2009/10	221	14	15.79	22
2010/11	203	13	15.62	20
2011/12	194	13	14.92	23
2012/13	196	11	17.82	26
2013/14	192	11	17.45	25
2014/15	201	11	18.27	26
2015/16	205	12	17.08	26
2016/17	220	12	18.33	27
2017/18	219	12	18.25	22
2019/20	238	13	18.31	24
2020/21	225	13	17.31	22
2021/22	218	13	16.77	21
2022/23	214	12	17.83	24
2023/24	190	12	15.83	23
2024/25	206	13	15.85	24
2025/26	202	12	16.83	22

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2024/25: 196 in 2023/24 → 212, +16 pupils.
Biggest loss in a single year: 1993/94: 512 in 1982/83 → 385, -127 pupils.
Largest single-class increase: 6th Class in 2025/26 (19 → 42, +23).
Largest single-class decrease: 3rd Class in 2023/24 (41 → 17, -24).
Largest cohort-step gain: 4th → 5th in 2024/25 (33 → 41, +8).
Largest cohort-step loss: JI → SI in 2023/24 (32 → 24, -8).
Overall: 747 (1974/75) → 208 (2025/26), -539.

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	20	32	26.0	6
Senior Infants	18	30	24.2	6
1st Class	20	38	26.0	6
2nd Class	17	37	24.8	6
3rd Class	17	41	25.2	6
4th Class	18	35	24.8	6
5th Class	18	41	27.8	6
6th Class	19	42	31.3	6
Total	192	747	333.7	42

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 24

SI 2021/22 30

-6

1st 2022/23 24

-1

2nd 2023/24 23

3rd 2024/25 24

-4

4th 2025/26 20

Cohort 2021/22

JI 2021/22 26

SI 2022/23 26

-1

1st 2023/24 25

2nd 2024/25 27

3rd 2025/26 30

Cohort 2022/23

JI 2022/23 32

-8

SI 2023/24 24

1st 2024/25 25

-2

2nd 2025/26 23

Cohort 2023/24

JI 2023/24 26

-6

SI 2024/25 20

1st 2025/26 24

Cohort 2024/25

JI 2024/25 28

-1

SI 2025/26 27

Cohort 2025/26

JI 2025/26 20

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	747	–	–	–	–	–	–	–	–	–	747
1975/76	–	–	–	–	–	–	–	–	–	–	708
1976/77	691	–	–	–	–	–	–	–	–	–	691
1977/78	670	–	–	–	–	–	–	–	–	–	670
1978/79	652	–	–	–	–	–	–	–	–	–	652
1979/80	632	–	–	–	–	–	–	–	–	–	632
1980/81	596	–	–	–	–	–	–	–	–	–	596
1981/82	558	–	–	–	–	–	–	–	–	–	558
1982/83	512	–	–	–	–	–	–	–	–	–	512
1993/94	385	–	–	–	–	–	–	–	–	–	385
1994/95	400	–	–	–	–	–	–	–	–	–	400
1995/96	394	–	–	–	–	–	–	–	–	–	394
1996/97	363	–	–	–	–	–	–	–	–	–	363
1997/98	331	–	–	–	–	–	–	–	–	–	331
1998/99	327	–	–	–	–	–	–	–	–	–	327
1999/00	301	–	–	–	–	–	–	–	–	–	301
2000/01	281	–	–	–	–	–	–	–	–	–	281
2001/02	267	–	–	–	–	–	–	–	–	–	267
2002/03	260	–	–	–	–	–	–	–	–	–	260
2003/04	244	–	–	–	–	–	–	–	–	–	244
2004/05	216	–	–	–	–	–	–	–	–	–	216
2005/06	209	–	–	–	–	–	–	–	–	–	209
2006/07	211	–	–	–	–	–	–	–	–	–	211
2007/08	221	–	–	–	–	–	–	–	–	–	221
2008/09	219	–	–	–	–	–	–	–	–	–	219
2009/10	221	–	–	–	–	–	–	–	–	–	221
2010/11	203	–	–	–	–	–	–	–	–	–	203
2011/12	194	–	–	–	–	–	–	–	–	–	194
2012/13	196	–	–	–	–	–	–	–	–	–	196
2013/14	192	–	–	–	–	–	–	–	–	–	192
2014/15	201	–	–	–	–	–	–	–	–	–	201
2015/16	205	–	–	–	–	–	–	–	–	–	205
2016/17	220	–	–	–	–	–	–	–	–	–	220
2017/18	223	–	–	–	–	–	–	–	–	–	223
2018/19	231	–	–	–	–	–	–	–	–	–	231
2019/20	244	–	–	–	–	–	–	–	–	–	244
2020/21	231	–	24	18	38	22	18	35	33	37	231
2021/22	224	–	26	30	20	37	21	18	33	33	224
2022/23	220	–	32	26	24	17	41	21	18	35	220
2023/24	196	–	26	24	25	23	17	33	20	22	196
2024/25	212	–	28	20	25	27	24	22	41	19	212
2025/26	208	–	20	27	24	23	30	20	22	42	208