By area · Release notes. Enrolment by planning area, local authority, school patron, county.
SCOIL CNOC MHUIRE SIN
Roll number: 19613O
Knockmore Avenue, Tallaght, Dublin 24
School details
- Address
- Knockmore Avenue, Tallaght, Dublin 24 (D24TF65)
- Principal
- Orla Hanahoe
- Ethos
- Catholic
- DEIS
- Y
- Irish classification
- No subjects through Irish
- Gaeltacht
- N
- Island
- N
- Local authority
- South Dublin County Council
- School patron
- Archbishop of Dublin
- School type
- Ordinary with Special Classes
- School level
- Senior
- Planning area
- Firhouse_Oldbawn
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.
- Biggest loss in a single year: 2024/25: 166 in 2023/24 → 146, -20 pupils.
- Largest single-class increase: 6th Class in 2022/23 (39 → 51, +12).
- Largest single-class decrease: 4th Class in 2025/26 (preliminary) (39 → 0, -39).
- Largest cohort-step gain: 5th → 6th in 2022/23 (46 → 51, +5).
- Largest cohort-step loss: 3rd → 4th in 2021/22 (51 → 48, -3).
- Overall: 183 (2020/21) → 145 (2025/26 (preliminary)), -38.
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 |
| 3rd Class |
28 |
51 |
38.0 |
5 |
| 4th Class |
35 |
48 |
41.2 |
5 |
| 5th Class |
34 |
46 |
41.4 |
5 |
| 6th Class |
39 |
51 |
43.6 |
5 |
| Total |
145 |
183 |
165.5 |
6 |
Total enrolment over time
Enrolment by gender over time
Enrolment by class over time
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 |
73 |
110 |
– |
– |
– |
– |
51 |
45 |
41 |
43 |
183 |
| 2021/22 |
79 |
98 |
– |
– |
– |
– |
38 |
48 |
46 |
39 |
177 |
| 2022/23 |
83 |
93 |
– |
– |
– |
– |
34 |
39 |
46 |
51 |
176 |
| 2023/24 |
84 |
82 |
– |
– |
– |
– |
39 |
35 |
40 |
46 |
166 |
| 2024/25 |
72 |
74 |
– |
– |
– |
– |
28 |
39 |
34 |
39 |
146 |
| 2025/26 (preliminary) |
65 |
80 |
– |
– |
– |
– |
– |
– |
– |
– |
145 |