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
17.16
2025/26
Mainstream classes
19
2025/26
Largest class group
21
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
371
18
20.61
23
0
2007/08
374
18
20.78
23
0
2008/09
388
19
20.42
23
0
2009/10
377
20
18.85
21
0
2010/11
372
19
19.58
23
0
2011/12
366
19
19.26
23
0
2012/13
368
18
20.44
25
0
2013/14
394
19
20.74
24
0
2014/15
389
19
20.47
23
0
2015/16
414
20
20.70
23
0
2016/17
396
20
19.80
22
0
2017/18
381
20
19.05
22
0
2019/20
367
20
18.35
22
0
2020/21
371
19
19.53
24
0
2021/22
369
20
18.45
21
0
2022/23
349
20
17.45
21
0
2023/24
339
19
17.84
23
0
2024/25
347
19
18.26
21
0
2025/26
326
19
17.16
21
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1977/78: 424 in 1975/76 → 518, +94 pupils.
Biggest loss in a single year: 1993/94: 520 in 1983/84 → 416, -104 pupils.
Largest single-class increase: Senior Infants in 2021/22 (84 → 97, +13).
Largest single-class decrease: 2nd Class in 2022/23 (101 → 83, -18).
Largest cohort-step gain: 1st → 2nd in 2025/26 (88 → 94, +6).
Largest cohort-step loss: 2nd → 3rd in 2022/23 (101 → 0, -101).
Overall: 424 (1975/76) → 350 (2025/26), -74.
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
75
95
85.2
6
Senior Infants
78
97
86.5
6
1st Class
83
102
90.7
6
2nd Class
83
101
91.8
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
332
522
408.3
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).