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S N PEADAR AGUS POL N

Roll number: 16972E Chapel Street, Balbriggan, Co. Dublin

School details

Address: Chapel Street, Balbriggan, Co. Dublin (K32PD27)
Email: [email protected]
Phone: 018412670
Principal: Siobhan Whelan
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
School level: Junior
Planning area: Balbriggan

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

23.80

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	459	15	30.60	31	14
2007/08	452	15	30.13	31	13
2008/09	481	16	30.06	31	15
2009/10	472	16	29.50	30	12
2010/11	458	16	28.62	30	5
2011/12	449	16	28.06	30	1
2012/13	452	16	28.25	30	4
2013/14	460	16	28.75	30	7
2014/15	468	16	29.25	31	10
2015/16	473	16	29.56	30	11
2016/17	465	16	29.06	30	8
2017/18	444	16	27.75	30	3
2019/20	440	16	27.50	28	0
2020/21	435	16	27.19	28	0
2021/22	411	16	25.69	28	0
2022/23	420	16	26.25	28	0
2023/24	386	16	24.12	28	0
2024/25	358	16	22.38	28	0
2025/26	357	15	23.80	27	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1975/76: 142 in 1974/75 → 220, +78 pupils.
Biggest loss in a single year: 2023/24: 420 in 2022/23 → 386, -34 pupils.
Largest single-class increase: Junior Infants in 2022/23 (93 → 111, +18).
Largest single-class decrease: Junior Infants in 2023/24 (111 → 75, -36).
Largest cohort-step gain: JI → SI in 2022/23 (93 → 97, +4).
Largest cohort-step loss: 2nd → 3rd in 2021/22 (112 → 0, -112).
Overall: 142 (1974/75) → 357 (2025/26), 215.

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	75	111	95.2	6
Senior Infants	73	108	96.0	6
1st Class	71	109	99.2	6
2nd Class	93	112	104.2	6
3rd Class	0	0	0.0	1
4th Class	0	0	0.0	1
5th Class	0	0	0.0	1
6th Class	0	0	0.0	1
Total	142	481	333.0	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 2020/21 108

SI 2021/22 108

-4

1st 2022/23 104

2nd 2023/24 104

-104

3rd 2024/25 0

4th 2025/26 0

Cohort 2021/22

JI 2021/22 93

SI 2022/23 97

1st 2023/24 99

-6

2nd 2024/25 93

-93

3rd 2025/26 0

Cohort 2022/23

JI 2022/23 111

-3

SI 2023/24 108

-1

1st 2024/25 107

-4

2nd 2025/26 103

Cohort 2023/24

JI 2023/24 75

-2

SI 2024/25 73

-2

1st 2025/26 71

Cohort 2024/25

JI 2024/25 85

-1

SI 2025/26 84

Cohort 2025/26

JI 2025/26 99

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	48	94	–	–	–	–	–	–	–	–	142
1975/76	–	–	–	–	–	–	–	–	–	–	220
1976/77	69	118	–	–	–	–	–	–	–	–	187
1977/78	84	109	–	–	–	–	–	–	–	–	193
1978/79	–	–	–	–	–	–	–	–	–	–	188
1979/80	85	106	–	–	–	–	–	–	–	–	191
1980/81	87	91	–	–	–	–	–	–	–	–	178
1981/82	76	94	–	–	–	–	–	–	–	–	170
1982/83	89	83	–	–	–	–	–	–	–	–	172
1983/84	89	102	–	–	–	–	–	–	–	–	191
1993/94	111	127	–	–	–	–	–	–	–	–	238
1994/95	102	128	–	–	–	–	–	–	–	–	230
1995/96	109	128	–	–	–	–	–	–	–	–	237
1996/97	108	123	–	–	–	–	–	–	–	–	231
1997/98	107	123	–	–	–	–	–	–	–	–	230
1998/99	118	128	–	–	–	–	–	–	–	–	246
1999/00	117	130	–	–	–	–	–	–	–	–	247
2000/01	116	136	–	–	–	–	–	–	–	–	252
2001/02	124	157	–	–	–	–	–	–	–	–	281
2002/03	148	178	–	–	–	–	–	–	–	–	326
2003/04	186	190	–	–	–	–	–	–	–	–	376
2004/05	196	190	–	–	–	–	–	–	–	–	386
2005/06	229	199	–	–	–	–	–	–	–	–	428
2006/07	240	219	–	–	–	–	–	–	–	–	459
2007/08	232	220	–	–	–	–	–	–	–	–	452
2008/09	239	242	–	–	–	–	–	–	–	–	481
2009/10	225	247	–	–	–	–	–	–	–	–	472
2010/11	217	241	–	–	–	–	–	–	–	–	458
2011/12	198	251	–	–	–	–	–	–	–	–	449
2012/13	195	257	–	–	–	–	–	–	–	–	452
2013/14	207	253	–	–	–	–	–	–	–	–	460
2014/15	209	259	–	–	–	–	–	–	–	–	468
2015/16	214	259	–	–	–	–	–	–	–	–	473
2016/17	216	249	–	–	–	–	–	–	–	–	465
2017/18	201	243	–	–	–	–	–	–	–	–	444
2018/19	207	234	–	–	–	–	–	–	–	–	441
2019/20	213	227	–	–	–	–	–	–	–	–	440
2020/21	211	224	108	106	109	112	–	–	–	–	435
2021/22	206	205	93	108	105	105	–	–	–	–	411
2022/23	205	215	111	97	104	108	–	–	–	–	420
2023/24	189	197	75	108	99	104	–	–	–	–	386
2024/25	192	166	85	73	107	93	–	–	–	–	358
2025/26	185	172	99	84	71	103	–	–	–	–	357