By area · Release notes. Enrolment by planning area, local authority, school patron, county.

S N na Lanai Glasa

Roll number: 17730I Seafield Avenue, Clontarf, Dublin 3

School details

Address
Seafield Avenue, Clontarf, Dublin 3 (D03A024)
Email
[email protected]
Phone
018331554
Principal
Alison Johnston
Ethos
Church Of Ireland
DEIS
N
Irish classification
No subjects through Irish
Gaeltacht
N
Island
N
Local authority
Dublin City Council
School patron
Archbishop of Dublin & Bishop of Glendalough COI
School type
Ordinary
School level
All-Through School
Planning area
Killester_Raheny_Clontarf

Preliminary data

The latest year shown (2025/26) is preliminary and subject to revision when the official enrolment figures are released by the Department of Education.

Data highlights

Key numbers to spot outliers or notable changes.

Summary statistics (class-level data)

Min / max / mean enrolment per class across the available years (2020/21–2024/25; preliminary year excluded from class stats).

Class Min Max Mean Years
Junior Infants 28 52 37.2 5
Senior Infants 28 51 37.6 5
1st Class 28 54 37.8 5
2nd Class 28 48 33.0 5
3rd Class 28 47 34.0 5
4th Class 27 35 30.2 5
5th Class 28 60 35.0 5
6th Class 28 57 34.6 5
Total 271 286 280.3 6

Total enrolment over time

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).

Cohort 2020/21
JI 2020/21 47
+2
SI 2021/22 49
-2
1st 2022/23 47
+1
2nd 2023/24 48
-1
3rd 2024/25 47
Cohort 2021/22
JI 2021/22 28
0
SI 2022/23 28
0
1st 2023/24 28
+1
2nd 2024/25 29
Cohort 2022/23
JI 2022/23 52
-1
SI 2023/24 51
+3
1st 2024/25 54
Cohort 2023/24
JI 2023/24 30
0
SI 2024/25 30
Cohort 2024/25
JI 2024/25 29

Raw data by year

Years marked (preliminary) are subject to revision when official data are published.

Year Female Male JI SI 1st 2nd 3rd 4th 5th 6th Total
2020/21 153 133 47 30 28 28 32 33 60 28 286
2021/22 149 132 28 49 32 28 29 28 30 57 281
2022/23 140 131 52 28 47 32 28 27 29 28 271
2023/24 142 136 30 51 28 48 34 28 28 31 278
2024/25 143 138 29 30 54 29 47 35 28 29 281
2025/26 (preliminary) 142 143 285