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
19.80
2025/26
Mainstream classes
5
2025/26
Largest class group
28
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
67
3
22.33
24
0
2007/08
74
3
24.67
32
1
2008/09
81
3
27.00
32
1
2009/10
91
4
22.75
26
0
2010/11
98
4
24.50
28
0
2011/12
104
4
26.00
30
1
2012/13
108
4
27.00
31
1
2013/14
121
4
30.25
38
1
2014/15
117
5
23.40
30
1
2015/16
121
5
24.20
29
0
2016/17
124
5
24.80
30
1
2017/18
117
5
23.40
27
0
2019/20
129
5
25.80
34
2
2020/21
128
6
21.33
32
1
2021/22
122
6
20.33
29
0
2022/23
109
5
21.80
31
1
2023/24
105
5
21.00
26
0
2024/25
101
5
20.20
27
0
2025/26
99
5
19.80
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 95 in 1974/75 → 108, +13 pupils.
Biggest loss in a single year: 1995/96: 92 in 1994/95 → 79, -13 pupils.
Largest single-class increase: 6th Class in 2025/26 (10 → 15, +5).
Largest single-class decrease: Junior Infants in 2022/23 (16 → 10, -6).
Largest cohort-step gain: 5th → 6th in 2025/26 (11 → 15, +4).
Largest cohort-step loss: 1st → 2nd in 2021/22 (16 → 14, -2).
Overall: 95 (1974/75) → 111 (2025/26), 16.
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
10
16
13.0
6
Senior Infants
11
16
14.0
6
1st Class
11
16
14.0
6
2nd Class
10
16
13.2
6
3rd Class
10
16
14.0
6
4th Class
10
17
14.3
6
5th Class
10
19
14.2
6
6th Class
10
21
16.3
6
Total
58
140
97.2
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).