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
23.14
2025/26
Mainstream classes
21
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
400
16
25.00
30
1
2007/08
430
19
22.63
27
0
2008/09
484
21
23.05
25
0
2009/10
521
21
24.81
30
2
2010/11
524
21
24.95
30
2
2011/12
565
21
26.90
30
2
2012/13
547
21
26.05
29
0
2013/14
509
20
25.45
28
0
2014/15
512
19
26.95
30
1
2015/16
504
19
26.53
30
2
2016/17
512
19
26.95
29
0
2017/18
526
19
27.68
34
4
2019/20
519
20
25.95
27
0
2020/21
509
20
25.45
27
0
2021/22
484
20
24.20
27
0
2022/23
495
21
23.57
26
0
2023/24
491
21
23.38
27
0
2024/25
481
21
22.90
26
0
2025/26
486
21
23.14
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1980/81: 310 in 1978/79 → 509, +199 pupils.
Biggest loss in a single year: 1994/95: 713 in 1993/94 → 646, -67 pupils.
Largest single-class increase: 3rd Class in 2022/23 (106 → 128, +22).
Largest single-class decrease: 5th Class in 2023/24 (134 → 110, -24).
Largest cohort-step gain: 5th → 6th in 2024/25 (110 → 115, +5).
Largest cohort-step loss: 5th → 6th in 2023/24 (134 → 125, -9).
Overall: 341 (1974/75) → 497 (2025/26), 156.
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
0
0
0.0
1
Senior Infants
0
0
0.0
1
1st Class
0
0
0.0
1
2nd Class
0
0
0.0
1
3rd Class
106
129
121.8
6
4th Class
109
130
121.3
6
5th Class
110
134
124.2
6
6th Class
115
132
125.5
6
Total
272
713
481.7
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).