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
23.15
2025/26
Mainstream classes
13
2025/26
Largest class group
30
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
217
8
27.12
29
0
2007/08
224
9
24.89
28
0
2008/09
228
9
25.33
28
0
2009/10
245
9
27.22
31
2
2010/11
253
10
25.30
29
0
2011/12
273
10
27.30
33
2
2012/13
295
11
26.82
33
2
2013/14
307
11
27.91
34
2
2014/15
323
12
26.92
29
0
2015/16
322
12
26.83
28
0
2016/17
345
13
26.54
29
0
2017/18
336
13
25.85
28
0
2019/20
339
13
26.08
28
0
2020/21
318
13
24.46
28
0
2021/22
310
13
23.85
29
0
2022/23
316
13
24.31
31
2
2023/24
296
13
22.77
28
0
2024/25
312
13
24.00
29
0
2025/26
301
13
23.15
30
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1979/80: 77 in 1977/78 → 273, +196 pupils.
Biggest loss in a single year: 1993/94: 613 in 1983/84 → 290, -323 pupils.
Largest single-class increase: Senior Infants in 2025/26 (69 → 85, +16).
Largest single-class decrease: Junior Infants in 2023/24 (80 → 62, -18).
Largest cohort-step gain: 1st → 2nd in 2024/25 (76 → 85, +9).
Largest cohort-step loss: 2nd → 3rd in 2023/24 (90 → 0, -90).
Overall: 77 (1977/78) → 319 (2025/26), 242.
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
62
80
71.8
6
Senior Infants
69
85
77.3
6
1st Class
73
86
78.8
6
2nd Class
75
90
83.8
6
3rd Class
0
0
0.0
1
4th Class
0
0
0.0
1
5th Class
0
0
0.0
1
6th Class
0
0
0.0
1
Total
77
613
310.7
39
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).