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
23.27
2025/26
Mainstream classes
15
2025/26
Largest class group
26
2025/26
Classes with 30+ pupils
0
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
358
14
25.57
27
0
2007/08
368
15
24.53
28
0
2008/09
384
16
24.00
28
0
2009/10
393
16
24.56
28
0
2010/11
380
16
23.75
28
0
2011/12
382
16
23.88
27
0
2012/13
399
16
24.94
28
0
2013/14
384
16
24.00
27
0
2014/15
374
16
23.38
26
0
2015/16
362
15
24.13
28
0
2016/17
351
14
25.07
29
0
2017/18
365
14
26.07
29
0
2019/20
356
15
23.73
29
0
2020/21
352
15
23.47
29
0
2021/22
339
15
22.60
30
1
2022/23
351
15
23.40
27
0
2023/24
346
15
23.07
27
0
2024/25
342
15
22.80
27
0
2025/26
349
15
23.27
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 189 in 1975/76 → 280, +91 pupils.
Biggest loss in a single year: 1993/94: 499 in 1983/84 → 460, -39 pupils.
Largest single-class increase: 3rd Class in 2025/26 (82 → 99, +17).
Largest single-class decrease: 3rd Class in 2023/24 (98 → 81, -17).
Largest cohort-step gain: 5th → 6th in 2025/26 (91 → 96, +5).
Largest cohort-step loss: 4th → 5th in 2023/24 (91 → 86, -5).
Overall: 189 (1975/76) → 365 (2025/26), 176.
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
0
0
0.0
1
Senior Infants
0
0
0.0
1
1st Class
0
0
0.0
1
2nd Class
0
0
0.0
1
3rd Class
81
99
89.2
6
4th Class
83
96
87.3
6
5th Class
83
91
85.3
6
6th Class
79
96
87.3
6
Total
189
507
387.8
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).