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
31.00
2025/26
Mainstream classes
8
2025/26
Largest class group
34
2025/26
Classes with 30+ pupils
7
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
263
8
32.88
34
8
2007/08
260
8
32.50
33
8
2008/09
261
8
32.62
33
8
2009/10
261
8
32.62
34
8
2010/11
260
8
32.50
33
8
2011/12
259
8
32.38
34
8
2012/13
261
8
32.62
34
8
2013/14
259
8
32.38
34
7
2014/15
261
8
32.62
34
7
2015/16
263
8
32.88
35
8
2016/17
259
8
32.38
35
8
2017/18
259
8
32.38
34
8
2019/20
254
8
31.75
34
6
2020/21
250
8
31.25
34
6
2021/22
251
8
31.38
34
6
2022/23
247
8
30.88
34
5
2023/24
248
8
31.00
34
5
2024/25
252
8
31.50
34
7
2025/26
248
8
31.00
34
7
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 98 in 1974/75 → 203, +105 pupils.
Biggest loss in a single year: 1980/81: 280 in 1979/80 → 266, -14 pupils.
Largest single-class increase: Junior Infants in 2021/22 (25 → 34, +9).
Largest single-class decrease: Senior Infants in 2021/22 (34 → 24, -10).
Largest cohort-step gain: 4th → 5th in 2024/25 (29 → 31, +2).
Largest cohort-step loss: 4th → 5th in 2022/23 (31 → 28, -3).
Overall: 98 (1974/75) → 248 (2025/26), 150.
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
25
34
31.0
6
Senior Infants
24
34
31.5
6
1st Class
25
34
31.8
6
2nd Class
24
34
31.5
6
3rd Class
24
34
31.0
6
4th Class
24
34
30.3
6
5th Class
28
34
31.5
6
6th Class
28
34
30.7
6
Total
98
280
255.7
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
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).