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
22.50
2025/26
Mainstream classes
8
2025/26
Largest class group
29
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
185
7
26.43
33
2
2007/08
171
7
24.43
31
1
2008/09
164
6
27.33
33
2
2009/10
161
6
26.83
30
1
2010/11
164
6
27.33
31
2
2011/12
160
6
26.67
35
1
2012/13
162
6
27.00
30
1
2013/14
159
6
26.50
28
0
2014/15
149
6
24.83
31
1
2015/16
154
6
25.67
34
2
2016/17
156
6
26.00
30
1
2017/18
150
6
25.00
30
1
2019/20
139
6
23.17
29
0
2020/21
138
8
17.25
21
0
2021/22
156
10
15.60
22
0
2022/23
165
8
20.62
24
0
2023/24
162
8
20.25
26
0
2024/25
172
8
21.50
26
0
2025/26
180
8
22.50
29
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2021/22: 150 in 2020/21 → 165, +15 pupils.
Biggest loss in a single year: 1993/94: 370 in 1983/84 → 280, -90 pupils.
Largest single-class increase: Junior Infants in 2025/26 (17 → 28, +11).
Largest single-class decrease: Junior Infants in 2023/24 (18 → 11, -7).
Largest cohort-step gain: 4th → 5th in 2023/24 (20 → 26, +6).
Largest cohort-step loss: 5th → 6th in 2024/25 (26 → 23, -3).
Overall: 410 (1974/75) → 192 (2025/26), -218.
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
11
28
18.8
6
Senior Infants
14
22
19.0
6
1st Class
17
24
20.7
6
2nd Class
17
28
21.7
6
3rd Class
15
26
21.3
6
4th Class
15
25
20.2
6
5th Class
18
26
21.7
6
6th Class
13
29
20.8
6
Total
150
420
231.9
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).