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
22.18
2025/26
Mainstream classes
11
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
2
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
301
11
27.36
34
4
2007/08
302
11
27.45
34
3
2008/09
299
11
27.18
34
3
2009/10
279
11
25.36
35
2
2010/11
278
10
27.80
31
3
2011/12
291
10
29.10
36
4
2012/13
299
11
27.18
35
4
2013/14
300
11
27.27
36
4
2014/15
293
11
26.64
36
4
2015/16
293
11
26.64
36
3
2016/17
308
11
28.00
35
3
2017/18
307
11
27.91
34
4
2019/20
279
11
25.36
33
3
2020/21
276
11
25.09
35
2
2021/22
279
11
25.36
34
3
2022/23
283
11
25.73
34
4
2023/24
287
11
26.09
33
3
2024/25
272
11
24.73
31
3
2025/26
244
11
22.18
32
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1978/79: 355 in 1977/78 → 377, +22 pupils.
Biggest loss in a single year: 2025/26: 272 in 2024/25 → 244, -28 pupils.
Largest single-class increase: Junior Infants in 2021/22 (33 → 47, +14).
Largest single-class decrease: Junior Infants in 2025/26 (33 → 19, -14).
Largest cohort-step gain: 3rd → 4th in 2024/25 (27 → 31, +4).
Largest cohort-step loss: 1st → 2nd in 2025/26 (51 → 29, -22).
Overall: 336 (1975/76) → 244 (2025/26), -92.
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
19
47
36.2
6
Senior Infants
34
49
41.7
6
1st Class
36
51
43.8
6
2nd Class
26
31
28.5
6
3rd Class
26
35
29.5
6
4th Class
28
34
30.5
6
5th Class
30
35
32.0
6
6th Class
29
34
31.3
6
Total
244
377
315.7
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).