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
15.50
2025/26
Mainstream classes
10
2025/26
Largest class group
19
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
282
14
20.14
23
0
2007/08
291
15
19.40
23
0
2008/09
287
16
17.94
22
0
2009/10
287
15
19.13
22
0
2010/11
267
14
19.07
22
0
2011/12
277
14
19.79
23
0
2012/13
272
14
19.43
23
0
2013/14
280
14
20.00
22
0
2014/15
289
15
19.27
22
0
2015/16
272
15
18.13
22
0
2016/17
277
15
18.47
23
0
2017/18
256
15
17.07
21
0
2019/20
246
14
17.57
22
0
2020/21
233
13
17.92
20
0
2021/22
220
13
16.92
19
0
2022/23
195
13
15.00
19
0
2023/24
179
12
14.92
19
0
2024/25
167
11
15.18
19
0
2025/26
155
10
15.50
19
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1983/84: 475 in 1982/83 → 775, +300 pupils.
Biggest loss in a single year: 1993/94: 775 in 1983/84 → 387, -388 pupils.
Largest single-class increase: 2nd Class in 2021/22 (49 → 65, +16).
Largest single-class decrease: 1st Class in 2021/22 (68 → 51, -17).
Largest cohort-step gain: 1st → 2nd in 2025/26 (45 → 53, +8).
Largest cohort-step loss: 2nd → 3rd in 2022/23 (65 → 0, -65).
Overall: 96 (1980/81) → 167 (2025/26), 71.
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
36
60
45.5
6
Senior Infants
40
56
47.3
6
1st Class
38
68
50.0
6
2nd Class
48
65
52.7
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
96
775
291.3
37
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).