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
22.92
2025/26
Mainstream classes
12
2025/26
Largest class group
27
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
251
9
27.89
33
6
2007/08
250
9
27.78
33
2
2008/09
237
9
26.33
30
1
2009/10
214
9
23.78
29
0
2010/11
225
8
28.12
32
4
2011/12
229
8
28.62
32
4
2012/13
257
10
25.70
32
2
2013/14
270
9
30.00
32
5
2014/15
284
10
28.40
31
4
2015/16
276
10
27.60
29
0
2016/17
264
10
26.40
28
0
2017/18
266
10
26.60
30
2
2019/20
274
10
27.40
30
3
2020/21
285
10
28.50
30
3
2021/22
291
11
26.45
30
1
2022/23
280
12
23.33
28
0
2023/24
282
12
23.50
28
0
2024/25
283
12
23.58
28
0
2025/26
275
12
22.92
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1993/94: 321 in 1983/84 → 500, +179 pupils.
Biggest loss in a single year: 2005/06: 310 in 2004/05 → 257, -53 pupils.
Largest single-class increase: Senior Infants in 2021/22 (58 → 83, +25).
Largest single-class decrease: 1st Class in 2021/22 (83 → 58, -25).
Largest cohort-step gain: JI → SI in 2024/25 (63 → 67, +4).
Largest cohort-step loss: 2nd → 3rd in 2022/23 (81 → 0, -81).
Overall: 54 (1979/80) → 281 (2025/26), 227.
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
63
84
72.7
6
Senior Infants
58
83
71.5
6
1st Class
58
83
71.2
6
2nd Class
59
81
69.8
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
54
500
298.8
38
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).