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
19.08
2025/26
Mainstream classes
12
2025/26
Largest class group
27
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
205
10
20.50
23
0
2007/08
203
10
20.30
25
0
2008/09
210
10
21.00
25
0
2009/10
213
11
19.36
25
0
2010/11
218
11
19.82
25
0
2011/12
237
11
21.55
25
0
2012/13
245
11
22.27
28
0
2013/14
245
11
22.27
25
0
2014/15
249
11
22.64
26
0
2015/16
259
11
23.55
27
0
2016/17
274
12
22.83
27
0
2017/18
270
13
20.77
29
0
2019/20
263
13
20.23
25
0
2020/21
269
12
22.42
26
0
2021/22
249
13
19.15
25
0
2022/23
236
13
18.15
24
0
2023/24
237
12
19.75
25
0
2024/25
228
12
19.00
27
0
2025/26
229
12
19.08
27
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1976/77: 386 in 1975/76 → 406, +20 pupils.
Biggest loss in a single year: 1993/94: 377 in 1982/83 → 296, -81 pupils.
Largest single-class increase: 4th Class in 2023/24 (23 → 32, +9).
Largest single-class decrease: Junior Infants in 2021/22 (52 → 35, -17).
Largest cohort-step gain: 3rd → 4th in 2023/24 (29 → 32, +3).
Largest cohort-step loss: 1st → 2nd in 2021/22 (49 → 29, -20).
Overall: 381 (1974/75) → 229 (2025/26), -152.
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
27
52
34.7
6
Senior Infants
23
52
35.5
6
1st Class
27
51
38.7
6
2nd Class
22
39
29.5
6
3rd Class
21
32
27.3
6
4th Class
19
32
26.2
6
5th Class
19
32
25.2
6
6th Class
17
33
24.3
6
Total
214
406
274.4
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).