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
23.83
2025/26
Mainstream classes
12
2025/26
Largest class group
34
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
278
10
27.80
37
4
2007/08
275
10
27.50
33
2
2008/09
276
10
27.60
31
2
2009/10
269
10
26.90
34
2
2010/11
279
10
27.90
35
3
2011/12
279
10
27.90
34
3
2012/13
263
10
26.30
33
2
2013/14
261
10
26.10
35
3
2014/15
265
10
26.50
29
0
2015/16
260
10
26.00
29
0
2016/17
250
10
25.00
32
3
2017/18
265
10
26.50
33
6
2019/20
273
10
27.30
35
3
2020/21
275
10
27.50
34
4
2021/22
285
11
25.91
34
2
2022/23
288
11
26.18
32
2
2023/24
293
12
24.42
31
1
2024/25
303
12
25.25
31
1
2025/26
286
12
23.83
34
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 237 in 1983/84 → 282, +45 pupils.
Biggest loss in a single year: 2002/03: 306 in 2001/02 → 281, -25 pupils.
Largest single-class increase: 4th Class in 2021/22 (24 → 33, +9).
Largest single-class decrease: 5th Class in 2021/22 (34 → 25, -9).
Largest cohort-step gain: 2nd → 3rd in 2024/25 (39 → 41, +2).
Largest cohort-step loss: 4th → 5th in 2025/26 (38 → 36, -2).
Overall: 185 (1974/75) → 293 (2025/26), 108.
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
27
37
33.2
6
Senior Infants
32
39
36.2
6
1st Class
32
42
37.7
6
2nd Class
35
42
38.2
6
3rd Class
34
42
39.2
6
4th Class
24
42
36.3
6
5th Class
25
44
35.0
6
6th Class
25
44
33.8
6
Total
175
306
257.7
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).