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
26.25
2025/26
Mainstream classes
8
2025/26
Largest class group
31
2025/26
Classes with 30+ pupils
1
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
240
8
30.00
36
6
2007/08
237
9
26.33
36
3
2008/09
228
9
25.33
36
2
2009/10
217
8
27.12
32
3
2010/11
210
8
26.25
33
2
2011/12
212
8
26.50
31
3
2012/13
202
8
25.25
31
2
2013/14
199
7
28.43
32
4
2014/15
205
8
25.62
31
1
2015/16
213
8
26.62
31
3
2016/17
207
8
25.88
30
3
2017/18
204
8
25.50
30
2
2019/20
202
7
28.86
33
4
2020/21
195
8
24.38
33
1
2021/22
193
8
24.12
32
1
2022/23
210
8
26.25
33
1
2023/24
213
8
26.62
33
2
2024/25
218
8
27.25
31
1
2025/26
210
8
26.25
31
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1979/80: 248 in 1978/79 → 278, +30 pupils.
Biggest loss in a single year: 1997/98: 260 in 1996/97 → 240, -20 pupils.
Largest single-class increase: Senior Infants in 2022/23 (17 → 29, +12).
Largest single-class decrease: 4th Class in 2021/22 (28 → 17, -11).
Largest cohort-step gain: 2nd → 3rd in 2022/23 (23 → 29, +6).
Largest cohort-step loss: JI → SI in 2021/22 (19 → 17, -2).
Overall: 241 (1975/76) → 215 (2025/26), -26.
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
19
33
26.0
6
Senior Infants
17
33
26.3
6
1st Class
19
31
25.3
6
2nd Class
20
31
25.0
6
3rd Class
17
29
24.8
6
4th Class
17
30
25.0
6
5th Class
21
33
27.3
6
6th Class
22
32
27.5
6
Total
193
295
234.6
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
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).