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St Nicholas Monastery NS

Roll number: 16469S PHILIP STREET, DUNDALK, CO LOUTH

School details

Address: PHILIP STREET, DUNDALK, CO LOUTH (A91X223)
Email: [email protected]
Phone: 0429334920
Principal: Katriona Cosgrove
Ethos: Catholic
DEIS: Y
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Louth County Council
School patron: Archbishop of Armagh
School type: Ordinary
School level: All-Through School
Planning area: Dundalk

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

19.75

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	177	9	19.67	27	0
2007/08	183	10	18.30	24	0
2008/09	200	10	20.00	27	0
2009/10	200	10	20.00	26	0
2010/11	196	10	19.60	26	0
2011/12	199	10	19.90	29	0
2012/13	195	10	19.50	30	1
2013/14	188	9	20.89	27	0
2014/15	178	9	19.78	27	0
2015/16	169	9	18.78	22	0
2016/17	153	8	19.12	29	0
2017/18	151	8	18.88	25	0
2019/20	169	8	21.12	27	0
2020/21	173	8	21.62	28	0
2021/22	161	8	20.12	25	0
2022/23	161	8	20.12	27	0
2023/24	154	8	19.25	27	0
2024/25	160	8	20.00	26	0
2025/26	158	8	19.75	25	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2005/06: 176 in 2004/05 → 206, +30 pupils.
Biggest loss in a single year: 1993/94: 340 in 1983/84 → 301, -39 pupils.
Largest single-class increase: 1st Class in 2023/24 (13 → 35, +22).
Largest single-class decrease: 4th Class in 2021/22 (27 → 10, -17).
Largest cohort-step gain: JI → SI in 2023/24 (18 → 22, +4).
Largest cohort-step loss: 1st → 2nd in 2025/26 (23 → 19, -4).
Overall: 413 (1974/75) → 164 (2025/26), -249.

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	14	31	20.0	6
Senior Infants	13	33	21.7	6
1st Class	13	35	22.3	6
2nd Class	14	35	21.3	6
3rd Class	13	34	19.5	6
4th Class	10	27	17.5	6
5th Class	11	25	19.2	6
6th Class	13	28	20.7	6
Total	151	414	240.2	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 15

-2

SI 2021/22 13

1st 2022/23 13

2nd 2023/24 14

-1

3rd 2024/25 13

4th 2025/26 13

Cohort 2021/22

JI 2021/22 31

SI 2022/23 33

1st 2023/24 35

2nd 2024/25 35

-1

3rd 2025/26 34

Cohort 2022/23

JI 2022/23 18

SI 2023/24 22

1st 2024/25 23

-4

2nd 2025/26 19

Cohort 2023/24

JI 2023/24 14

SI 2024/25 18

1st 2025/26 20

Cohort 2024/25

JI 2024/25 19

SI 2025/26 21

Cohort 2025/26

JI 2025/26 23

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	–	413	–	–	–	–	–	–	–	–	413
1975/76	–	–	–	–	–	–	–	–	–	–	414
1976/77	–	395	–	–	–	–	–	–	–	–	395
1977/78	–	385	–	–	–	–	–	–	–	–	385
1978/79	–	393	–	–	–	–	–	–	–	–	393
1979/80	–	372	–	–	–	–	–	–	–	–	372
1980/81	–	358	–	–	–	–	–	–	–	–	358
1981/82	–	357	–	–	–	–	–	–	–	–	357
1982/83	–	338	–	–	–	–	–	–	–	–	338
1983/84	–	340	–	–	–	–	–	–	–	–	340
1993/94	–	301	–	–	–	–	–	–	–	–	301
1994/95	–	281	–	–	–	–	–	–	–	–	281
1995/96	–	259	–	–	–	–	–	–	–	–	259
1996/97	–	253	–	–	–	–	–	–	–	–	253
1997/98	–	257	–	–	–	–	–	–	–	–	257
1998/99	–	236	–	–	–	–	–	–	–	–	236
1999/00	–	226	–	–	–	–	–	–	–	–	226
2000/01	–	215	–	–	–	–	–	–	–	–	215
2001/02	–	204	–	–	–	–	–	–	–	–	204
2002/03	–	201	–	–	–	–	–	–	–	–	201
2003/04	–	187	–	–	–	–	–	–	–	–	187
2004/05	–	176	–	–	–	–	–	–	–	–	176
2005/06	–	206	–	–	–	–	–	–	–	–	206
2006/07	–	192	–	–	–	–	–	–	–	–	192
2007/08	–	197	–	–	–	–	–	–	–	–	197
2008/09	–	213	–	–	–	–	–	–	–	–	213
2009/10	–	216	–	–	–	–	–	–	–	–	216
2010/11	–	212	–	–	–	–	–	–	–	–	212
2011/12	–	199	–	–	–	–	–	–	–	–	199
2012/13	–	195	–	–	–	–	–	–	–	–	195
2013/14	–	188	–	–	–	–	–	–	–	–	188
2014/15	–	178	–	–	–	–	–	–	–	–	178
2015/16	–	169	–	–	–	–	–	–	–	–	169
2016/17	–	153	–	–	–	–	–	–	–	–	153
2017/18	–	151	–	–	–	–	–	–	–	–	151
2018/19	–	156	–	–	–	–	–	–	–	–	156
2019/20	–	169	–	–	–	–	–	–	–	–	169
2020/21	–	173	15	23	21	21	13	27	25	28	173
2021/22	–	161	31	13	22	19	18	10	25	23	161
2022/23	–	161	18	33	13	20	20	19	11	27	161
2023/24	–	154	14	22	35	14	19	19	18	13	154
2024/25	–	160	19	18	23	35	13	17	18	17	160
2025/26	–	164	23	21	20	19	34	13	18	16	164