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
22.92
2025/26
Mainstream classes
12
2025/26
Largest class group
31
2025/26
Classes with 30+ pupils
2
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
176
8
22.00
26
0
2007/08
176
7
25.14
29
0
2008/09
180
7
25.71
29
0
2009/10
206
8
25.75
30
1
2010/11
222
9
24.67
32
2
2011/12
248
9
27.56
31
3
2012/13
261
9
29.00
32
5
2013/14
272
10
27.20
33
3
2014/15
283
11
25.73
31
3
2015/16
274
10
27.40
34
2
2016/17
285
10
28.50
35
5
2017/18
279
11
25.36
35
3
2019/20
266
11
24.18
36
2
2020/21
262
10
26.20
36
2
2021/22
248
9
27.56
36
3
2022/23
230
10
23.00
34
3
2023/24
238
9
26.44
34
3
2024/25
247
10
24.70
33
2
2025/26
275
12
22.92
31
2
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2025/26: 251 in 2024/25 → 285, +34 pupils.
Biggest loss in a single year: 2022/23: 248 in 2021/22 → 230, -18 pupils.
Largest single-class increase: Junior Infants in 2025/26 (40 → 63, +23).
Largest single-class decrease: 6th Class in 2022/23 (38 → 19, -19).
Largest cohort-step gain: JI → SI in 2025/26 (40 → 45, +5).
Largest cohort-step loss: 1st → 2nd in 2025/26 (36 → 32, -4).
Overall: 40 (1996/97) → 285 (2025/26), 245.
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
25
63
35.7
6
Senior Infants
26
45
31.3
6
1st Class
27
36
30.5
6
2nd Class
27
38
31.3
6
3rd Class
25
36
30.5
6
4th Class
26
36
30.2
6
5th Class
23
39
30.8
6
6th Class
19
38
31.3
6
Total
40
285
209.7
30
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).