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HOLY SPIRIT B N S

Roll number: 19208F Sillogue Road, Ballymun, Dublin 11

School details

Address: Sillogue Road, Ballymun, Dublin 11 (D11N207)
Email: [email protected]
Phone: 018421230
Principal: Vivienne Bryan
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: FinglasEast_BallymunD11

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

17.15

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	377	16	23.56	26	0
2007/08	383	16	23.94	28	0
2008/09	375	17	22.06	26	0
2009/10	358	17	21.06	26	0
2010/11	348	16	21.75	25	0
2011/12	337	16	21.06	24	0
2012/13	331	16	20.69	24	0
2013/14	338	16	21.12	27	0
2014/15	338	16	21.12	27	0
2015/16	346	16	21.62	26	0
2016/17	354	16	22.12	26	0
2017/18	341	16	21.31	27	0
2019/20	337	16	21.06	26	0
2020/21	316	16	19.75	26	0
2021/22	308	15	20.53	30	1
2022/23	285	15	19.00	25	0
2023/24	262	15	17.47	24	0
2024/25	242	14	17.29	23	0
2025/26	223	13	17.15	27	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1994/95: 420 in 1993/94 → 437, +17 pupils.
Biggest loss in a single year: 1993/94: 710 in 1983/84 → 420, -290 pupils.
Largest single-class increase: 1st Class in 2023/24 (34 → 42, +8).
Largest single-class decrease: 4th Class in 2022/23 (49 → 33, -16).
Largest cohort-step gain: 2nd → 3rd in 2023/24 (32 → 35, +3).
Largest cohort-step loss: 5th → 6th in 2023/24 (48 → 44, -4).
Overall: 1144 (1974/75) → 229 (2025/26), -915.

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	22	41	29.5	6
Senior Infants	22	40	30.3	6
1st Class	23	42	31.7	6
2nd Class	24	40	32.5	6
3rd Class	29	48	36.2	6
4th Class	30	49	37.7	6
5th Class	29	48	38.8	6
6th Class	29	48	39.8	6
Total	229	1144	498.6	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 34

-1

SI 2021/22 33

1st 2022/23 34

2nd 2023/24 35

-1

3rd 2024/25 34

-2

4th 2025/26 32

Cohort 2021/22

JI 2021/22 41

-1

SI 2022/23 40

1st 2023/24 42

-2

2nd 2024/25 40

-3

3rd 2025/26 37

Cohort 2022/23

JI 2022/23 28

-1

SI 2023/24 27

-1

1st 2024/25 26

-2

2nd 2025/26 24

Cohort 2023/24

JI 2023/24 23

-1

SI 2024/25 22

1st 2025/26 23

Cohort 2024/25

JI 2024/25 29

-2

SI 2025/26 27

Cohort 2025/26

JI 2025/26 22

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	–	1144	–	–	–	–	–	–	–	–	1144
1975/76	–	–	–	–	–	–	–	–	–	–	1039
1976/77	–	1020	–	–	–	–	–	–	–	–	1020
1977/78	–	1015	–	–	–	–	–	–	–	–	1015
1978/79	–	–	–	–	–	–	–	–	–	–	992
1979/80	–	938	–	–	–	–	–	–	–	–	938
1980/81	–	917	–	–	–	–	–	–	–	–	917
1981/82	–	850	–	–	–	–	–	–	–	–	850
1982/83	–	754	–	–	–	–	–	–	–	–	754
1983/84	–	710	–	–	–	–	–	–	–	–	710
1993/94	–	420	–	–	–	–	–	–	–	–	420
1994/95	–	437	–	–	–	–	–	–	–	–	437
1995/96	–	430	–	–	–	–	–	–	–	–	430
1996/97	–	436	–	–	–	–	–	–	–	–	436
1997/98	–	429	–	–	–	–	–	–	–	–	429
1998/99	–	421	–	–	–	–	–	–	–	–	421
1999/00	–	426	–	–	–	–	–	–	–	–	426
2000/01	–	427	–	–	–	–	–	–	–	–	427
2001/02	–	411	–	–	–	–	–	–	–	–	411
2002/03	–	393	–	–	–	–	–	–	–	–	393
2003/04	–	393	–	–	–	–	–	–	–	–	393
2004/05	–	399	–	–	–	–	–	–	–	–	399
2005/06	–	404	–	–	–	–	–	–	–	–	404
2006/07	–	398	–	–	–	–	–	–	–	–	398
2007/08	–	396	–	–	–	–	–	–	–	–	396
2008/09	–	387	–	–	–	–	–	–	–	–	387
2009/10	–	368	–	–	–	–	–	–	–	–	368
2010/11	–	359	–	–	–	–	–	–	–	–	359
2011/12	–	346	–	–	–	–	–	–	–	–	346
2012/13	–	331	–	–	–	–	–	–	–	–	331
2013/14	–	338	–	–	–	–	–	–	–	–	338
2014/15	–	338	–	–	–	–	–	–	–	–	338
2015/16	–	346	–	–	–	–	–	–	–	–	346
2016/17	–	354	–	–	–	–	–	–	–	–	354
2017/18	–	341	–	–	–	–	–	–	–	–	341
2018/19	–	335	–	–	–	–	–	–	–	–	335
2019/20	–	337	–	–	–	–	–	–	–	–	337
2020/21	–	316	34	33	31	34	48	46	42	48	316
2021/22	–	308	41	33	34	30	34	49	47	40	308
2022/23	–	291	28	40	34	32	29	33	48	47	291
2023/24	–	268	23	27	42	35	35	30	32	44	268
2024/25	–	248	29	22	26	40	34	36	29	31	248
2025/26	–	229	22	27	23	24	37	32	35	29	229