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
21.57
2025/26
Mainstream classes
14
2025/26
Largest class group
25
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
445
16
27.81
31
4
2007/08
451
16
28.19
32
6
2008/09
445
17
26.18
31
7
2009/10
424
16
26.50
31
3
2010/11
406
16
25.38
29
0
2011/12
431
16
26.94
31
2
2012/13
444
16
27.75
31
4
2013/14
446
16
27.88
31
5
2014/15
447
16
27.94
31
5
2015/16
432
16
27.00
31
3
2016/17
422
16
26.38
30
2
2017/18
412
16
25.75
29
0
2019/20
409
16
25.56
29
0
2020/21
403
16
25.19
28
0
2021/22
390
16
24.38
26
0
2022/23
374
16
23.38
26
0
2023/24
364
16
22.75
25
0
2024/25
339
15
22.60
25
0
2025/26
302
14
21.57
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 249 in 1974/75 → 497, +248 pupils.
Biggest loss in a single year: 1993/94: 560 in 1983/84 → 472, -88 pupils.
Largest single-class increase: Junior Infants in 2023/24 (81 → 87, +6).
Largest single-class decrease: Junior Infants in 2024/25 (87 → 71, -16).
Largest cohort-step gain: SI → 1st in 2024/25 (82 → 88, +6).
Largest cohort-step loss: 2nd → 3rd in 2021/22 (107 → 0, -107).
Overall: 249 (1974/75) → 302 (2025/26), 53.
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
57
101
81.7
6
Senior Infants
71
99
88.0
6
1st Class
86
99
94.0
6
2nd Class
88
107
98.3
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
249
560
441.3
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).