The John Scottus Education Trust Company Limited by Guarantee
School type
Ordinary
School level
All-Through School
Planning area
Dublin2_Dublin4
Class size history
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
17.86
2025/26
Mainstream classes
7
2025/26
Largest class group
20
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
293
10
29.30
38
6
2007/08
288
11
26.18
36
5
2008/09
274
11
24.91
33
3
2009/10
262
10
26.20
39
3
2010/11
259
10
25.90
39
4
2011/12
239
10
23.90
36
2
2012/13
265
10
26.50
39
3
2013/14
252
10
25.20
38
3
2014/15
238
9
26.44
36
3
2015/16
236
14
16.86
22
0
2016/17
217
14
15.50
23
0
2017/18
216
14
15.43
22
0
2019/20
190
12
15.83
22
0
2020/21
180
12
15.00
22
0
2021/22
176
11
16.00
21
0
2022/23
177
10
17.70
26
0
2023/24
166
9
18.44
25
0
2024/25
166
9
18.44
21
0
2025/26
125
7
17.86
20
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2005/06: 218 in 2004/05 → 275, +57 pupils.
Biggest loss in a single year: 2025/26: 166 in 2024/25 → 136, -30 pupils.
Largest single-class increase: 1st Class in 2021/22 (19 → 27, +8).
Largest single-class decrease: 5th Class in 2025/26 (28 → 15, -13).
Largest cohort-step gain: JI → SI in 2022/23 (14 → 21, +7).
Largest cohort-step loss: 1st → 2nd in 2023/24 (26 → 17, -9).
Overall: 108 (1999/00) → 136 (2025/26), 28.
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
10
20
16.0
6
Senior Infants
14
26
20.0
6
1st Class
17
27
21.7
6
2nd Class
17
22
20.2
6
3rd Class
17
27
21.3
6
4th Class
20
26
22.5
6
5th Class
15
28
23.2
6
6th Class
18
29
22.0
6
Total
108
293
211.5
27
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).