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
25.08
2025/26
Mainstream classes
12
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
249
10
24.90
29
0
2007/08
232
11
21.09
28
0
2008/09
239
11
21.73
28
0
2009/10
230
10
23.00
26
0
2010/11
221
10
22.10
26
0
2011/12
231
9
25.67
30
1
2012/13
209
9
23.22
29
0
2013/14
202
8
25.25
29
0
2014/15
243
9
27.00
29
0
2015/16
270
10
27.00
32
1
2016/17
314
12
26.17
30
2
2017/18
346
13
26.62
30
2
2019/20
353
13
27.15
29
0
2020/21
326
12
27.17
29
0
2021/22
318
12
26.50
29
0
2022/23
315
12
26.25
29
0
2023/24
300
12
25.00
27
0
2024/25
301
12
25.08
28
0
2025/26
301
12
25.08
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 355 in 1974/75 → 420, +65 pupils.
Biggest loss in a single year: 1993/94: 438 in 1983/84 → 372, -66 pupils.
Largest single-class increase: 3rd Class in 2025/26 (65 → 81, +16).
Largest single-class decrease: 3rd Class in 2023/24 (80 → 69, -11).
Largest cohort-step gain: 3rd → 4th in 2024/25 (69 → 76, +7).
Largest cohort-step loss: 3rd → 4th in 2021/22 (78 → 76, -2).
Overall: 355 (1974/75) → 307 (2025/26), -48.
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
0
0
0.0
1
Senior Infants
0
0
0.0
1
1st Class
1
1
1.0
1
2nd Class
0
0
0.0
1
3rd Class
65
81
74.0
6
4th Class
68
84
75.8
6
5th Class
74
85
80.2
6
6th Class
78
86
81.2
6
Total
206
495
330.6
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).