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
18.33
2025/26
Mainstream classes
15
2025/26
Largest class group
26
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
167
10
16.70
24
0
2007/08
170
10
17.00
25
0
2008/09
197
11
17.91
30
1
2009/10
287
14
20.50
29
0
2010/11
175
14
12.50
19
0
2011/12
251
13
19.31
30
1
2012/13
243
14
17.36
25
0
2013/14
248
14
17.71
24
0
2014/15
257
13
19.77
24
0
2015/16
262
13
20.15
26
0
2016/17
258
13
19.85
25
0
2017/18
241
13
18.54
22
0
2019/20
267
13
20.54
25
0
2020/21
255
13
19.62
25
0
2021/22
267
13
20.54
26
0
2022/23
270
14
19.29
23
0
2023/24
282
15
18.80
23
0
2024/25
276
15
18.40
23
0
2025/26
275
15
18.33
26
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2008/09: 293 in 2007/08 → 316, +23 pupils.
Biggest loss in a single year: 1999/00: 354 in 1998/99 → 313, -41 pupils.
Largest single-class increase: 1st Class in 2023/24 (21 → 51, +30).
Largest single-class decrease: 1st Class in 2022/23 (39 → 21, -18).
Largest cohort-step gain: 2nd → 3rd in 2025/26 (49 → 55, +6).
Largest cohort-step loss: JI → SI in 2021/22 (27 → 22, -5).
Overall: 392 (1996/97) → 293 (2025/26), -99.
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
47
36.3
6
Senior Infants
22
49
36.0
6
1st Class
21
51
37.2
6
2nd Class
24
49
36.7
6
3rd Class
24
55
35.3
6
4th Class
22
39
29.8
6
5th Class
23
41
33.2
6
6th Class
23
43
34.0
6
Total
258
392
291.1
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).