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
22.69
2025/26
Mainstream classes
16
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
352
13
27.08
32
2
2007/08
344
13
26.46
30
2
2008/09
351
14
25.07
30
1
2009/10
364
13
28.00
31
7
2010/11
352
13
27.08
30
2
2011/12
376
14
26.86
29
0
2012/13
426
16
26.62
30
2
2013/14
434
16
27.12
31
3
2014/15
463
17
27.24
29
0
2015/16
468
17
27.53
29
0
2016/17
440
17
25.88
30
1
2017/18
434
16
27.12
29
0
2019/20
411
16
25.69
29
0
2020/21
401
16
25.06
29
0
2021/22
380
16
23.75
28
0
2022/23
383
16
23.94
27
0
2023/24
374
16
23.38
25
0
2024/25
374
16
23.38
26
0
2025/26
363
16
22.69
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 324 in 1975/76 → 433, +109 pupils.
Biggest loss in a single year: 1993/94: 601 in 1983/84 → 419, -182 pupils.
Largest single-class increase: Senior Infants in 2025/26 (86 → 100, +14).
Largest single-class decrease: Senior Infants in 2021/22 (107 → 89, -18).
Largest cohort-step gain: 1st → 2nd in 2023/24 (90 → 95, +5).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (101 → 0, -101).
Overall: 324 (1975/76) → 369 (2025/26), 45.
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
86
100
93.2
6
Senior Infants
86
107
95.3
6
1st Class
86
101
94.8
6
2nd Class
95
101
97.7
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
276
601
400.2
41
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).