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
21.40
2025/26
Mainstream classes
5
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
51
3
17.00
22
0
2007/08
58
3
19.33
28
0
2008/09
64
3
21.33
25
0
2009/10
77
3
25.67
33
1
2010/11
81
5
16.20
22
0
2011/12
100
5
20.00
24
0
2012/13
117
5
23.40
28
0
2013/14
116
5
23.20
26
0
2014/15
120
5
24.00
28
0
2015/16
140
5
28.00
31
2
2016/17
148
5
29.60
32
3
2017/18
148
6
24.67
33
2
2019/20
128
6
21.33
33
1
2020/21
123
5
24.60
32
1
2021/22
111
5
22.20
31
1
2022/23
112
5
22.40
33
1
2023/24
99
5
19.80
25
0
2024/25
105
5
21.00
28
0
2025/26
107
5
21.40
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1977/78: 312 in 1976/77 → 344, +32 pupils.
Biggest loss in a single year: 1993/94: 315 in 1983/84 → 211, -104 pupils.
Largest single-class increase: 3rd Class in 2021/22 (16 → 24, +8).
Largest single-class decrease: 4th Class in 2021/22 (32 → 16, -16).
Largest cohort-step gain: 4th → 5th in 2025/26 (23 → 27, +4).
Largest cohort-step loss: 2nd → 3rd in 2021/22 (25 → 24, -1).
Overall: 301 (1975/76) → 119 (2025/26), -182.
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
12
12
12.0
1
Senior Infants
0
0
0.0
1
1st Class
0
0
0.0
1
2nd Class
14
25
19.3
6
3rd Class
15
24
18.8
6
4th Class
16
32
21.7
6
5th Class
18
31
24.2
6
6th Class
21
32
25.5
6
Total
61
378
169.4
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).