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
23.86
2025/26
Mainstream classes
14
2025/26
Largest class group
26
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
364
13
28.00
30
1
2007/08
351
13
27.00
28
0
2008/09
344
13
26.46
28
0
2009/10
345
12
28.75
33
4
2010/11
334
12
27.83
29
0
2011/12
331
12
27.58
29
0
2012/13
362
13
27.85
29
0
2013/14
390
14
27.86
29
0
2014/15
420
15
28.00
29
0
2015/16
409
15
27.27
29
0
2016/17
407
15
27.13
29
0
2017/18
411
15
27.40
29
0
2019/20
396
15
26.40
30
1
2020/21
380
15
25.33
30
1
2021/22
349
15
23.27
26
0
2022/23
349
14
24.93
30
1
2023/24
347
14
24.79
28
0
2024/25
354
14
25.29
29
0
2025/26
334
14
23.86
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2012/13: 331 in 2011/12 → 362, +31 pupils.
Biggest loss in a single year: 1975/76: 522 in 1974/75 → 478, -44 pupils.
Largest single-class increase: Senior Infants in 2024/25 (107 → 126, +19).
Largest single-class decrease: 1st Class in 2021/22 (141 → 116, -25).
Largest cohort-step gain: JI → SI in 2022/23 (113 → 115, +2).
Largest cohort-step loss: 1st → 2nd in 2021/22 (141 → 0, -141).
Overall: 522 (1974/75) → 334 (2025/26), -188.
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
98
127
115.8
6
Senior Infants
107
126
116.3
6
1st Class
109
141
120.0
6
2nd Class
0
0
0.0
1
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
331
522
393.9
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).