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SCOIL COLMCILLE SENIOR

Roll number: 19438W Coolevin, Ballybrack, Co. Dublin

School details

Address
Coolevin, Ballybrack, Co. Dublin (A96TN32)
Email
[email protected]
Phone
012855527
Principal
Aidan Boyle
Ethos
Catholic
DEIS
Y
Irish classification
No subjects through Irish
Gaeltacht
N
Island
N
Local authority
Dun Laoghaire Rathdown
School patron
Archbishop of Dublin
School type
Ordinary with Special Classes
School level
Senior
Planning area
Sallynoggin_Killiney_DLR

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
20.14
2025/26
Mainstream classes
7
2025/26
Largest class group
23
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+
2006/07 157 8 19.62 24 0
2007/08 163 8 20.38 23 0
2008/09 152 8 19.00 24 0
2009/10 166 8 20.75 25 0
2010/11 157 8 19.62 23 0
2011/12 159 7 22.71 28 0
2012/13 174 7 24.86 28 0
2013/14 186 8 23.25 28 0
2014/15 198 9 22.00 26 0
2015/16 194 9 21.56 26 0
2016/17 174 9 19.33 24 0
2017/18 160 8 20.00 25 0
2019/20 141 7 20.14 33 1
2020/21 156 8 19.50 24 0
2021/22 152 7 21.71 32 1
2022/23 152 7 21.71 35 1
2023/24 158 7 22.57 34 1
2024/25 147 8 18.38 24 0
2025/26 141 7 20.14 23 0

Data highlights

Key numbers to spot outliers or notable changes.

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 0 0 0.0 1
Senior Infants 0 0 0.0 1
1st Class 0 0 0.0 1
2nd Class 0 0 0.0 1
3rd Class 29 47 37.0 6
4th Class 30 47 38.5 6
5th Class 30 49 38.8 6
6th Class 32 45 38.7 6
Total 141 885 267.6 42

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).

Cohort 2025/26
JI 2025/26 0

Raw data by year

Year Female Male JI SI 1st 2nd 3rd 4th 5th 6th Total
1974/75 70 79 – – – – – – – – 149
1975/76 – – – – – – – – – – 572
1976/77 346 361 – – – – – – – – 707
1977/78 390 427 – – – – – – – – 817
1978/79 – – – – – – – – – – 885
1980/81 253 245 – – – – – – – – 498
1981/82 237 239 – – – – – – – – 476
1982/83 243 259 – – – – – – – – 502
1983/84 234 244 – – – – – – – – 478
1993/94 104 123 – – – – – – – – 227
1994/95 101 111 – – – – – – – – 212
1995/96 102 109 – – – – – – – – 211
1996/97 104 108 – – – – – – – – 212
1997/98 112 111 – – – – – – – – 223
1998/99 105 124 – – – – – – – – 229
1999/00 82 116 – – – – – – – – 198
2000/01 92 116 – – – – – – – – 208
2001/02 96 120 – – – – – – – – 216
2002/03 106 115 – – – – – – – – 221
2003/04 104 122 – – – – – – – – 226
2004/05 91 108 – – – – – – – – 199
2005/06 82 105 – – – – – – – – 187
2006/07 70 104 – – – – – – – – 174
2007/08 62 115 – – – – – – – – 177
2008/09 57 113 – – – – – – – – 170
2009/10 59 118 – – – – – – – – 177
2010/11 66 104 – – – – – – – – 170
2011/12 73 92 – – – – – – – – 165
2012/13 88 95 – – – – – – – – 183
2013/14 95 98 – – – – – – – – 193
2014/15 107 98 – – – – – – – – 205
2015/16 98 102 – – – – – – – – 200
2016/17 87 94 – – – – – – – – 181
2017/18 80 83 – – – – – – – – 163
2018/19 71 82 – – – – – – – – 153
2019/20 66 75 – – – – – – – – 141
2020/21 63 93 – – – – 47 36 34 39 156
2021/22 62 93 – – – – 38 46 37 32 155
2022/23 67 91 – – – – 35 38 45 37 158
2023/24 74 90 – – – – 43 34 38 45 164
2024/25 73 80 – – – – 29 47 30 41 153
2025/26 72 75 – – – – 30 30 49 38 147