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
19.00
2025/26
Mainstream classes
7
2025/26
Largest class group
25
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
202
10
20.20
28
0
2007/08
189
10
18.90
26
0
2008/09
189
10
18.90
26
0
2009/10
165
9
18.33
24
0
2010/11
162
8
20.25
27
0
2011/12
160
8
20.00
27
0
2012/13
161
8
20.12
27
0
2013/14
175
8
21.88
27
0
2014/15
180
8
22.50
30
1
2015/16
190
9
21.11
27
0
2016/17
199
9
22.11
26
0
2017/18
195
9
21.67
27
0
2019/20
184
9
20.44
25
0
2020/21
181
9
20.11
25
0
2021/22
166
9
18.44
24
0
2022/23
157
9
17.44
23
0
2023/24
138
8
17.25
22
0
2024/25
135
7
19.29
22
0
2025/26
133
7
19.00
25
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2013/14: 161 in 2012/13 → 175, +14 pupils.
Biggest loss in a single year: 2009/10: 189 in 2008/09 → 169, -20 pupils.
Largest single-class increase: 3rd Class in 2025/26 (15 → 23, +8).
Largest single-class decrease: 4th Class in 2021/22 (32 → 20, -12).
Largest cohort-step gain: 1st → 2nd in 2024/25 (17 → 20, +3).
Largest cohort-step loss: SI → 1st in 2021/22 (25 → 22, -3).
Overall: 197 (1993/94) → 139 (2025/26), -58.
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
11
17
14.7
6
Senior Infants
11
25
16.0
6
1st Class
12
22
17.0
6
2nd Class
15
23
19.2
6
3rd Class
15
23
19.8
6
4th Class
15
32
21.2
6
5th Class
18
29
22.3
6
6th Class
19
29
22.5
6
Total
139
224
187.6
33
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).