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
24.67
2025/26
Mainstream classes
6
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
1
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
145
6
24.17
33
1
2007/08
147
6
24.50
27
0
2008/09
160
6
26.67
32
1
2009/10
168
6
28.00
31
2
2010/11
173
6
28.83
32
3
2011/12
184
7
26.29
32
1
2012/13
191
7
27.29
32
2
2013/14
200
7
28.57
32
1
2014/15
187
7
26.71
29
0
2015/16
188
7
26.86
29
0
2016/17
175
7
25.00
29
0
2017/18
170
7
24.29
28
0
2019/20
156
6
26.00
31
1
2020/21
139
6
23.17
31
1
2021/22
134
6
22.33
29
0
2022/23
135
6
22.50
30
1
2023/24
139
6
23.17
31
1
2024/25
134
6
22.33
30
1
2025/26
148
6
24.67
32
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1975/76: 138 in 1974/75 → 172, +34 pupils.
Biggest loss in a single year: 1993/94: 203 in 1983/84 → 152, -51 pupils.
Largest single-class increase: Junior Infants in 2025/26 (15 → 25, +10).
Largest single-class decrease: 6th Class in 2021/22 (28 → 14, -14).
Largest cohort-step gain: SI → 1st in 2025/26 (16 → 19, +3).
Largest cohort-step loss: SI → 1st in 2022/23 (16 → 14, -2).
Overall: 138 (1974/75) → 148 (2025/26), 10.
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
15
25
18.2
6
Senior Infants
15
18
16.5
6
1st Class
11
19
16.0
6
2nd Class
11
21
16.2
6
3rd Class
12
20
16.3
6
4th Class
15
21
17.7
6
5th Class
14
22
17.8
6
6th Class
14
28
19.5
6
Total
120
220
158.4
43
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).