Planning area in Dublin
Dunlaoghaire
Schools in County Dublin in this planning area.
- Schools
- 14
- of 459 in Dublin
- Pupils
- 4,394
- 3% of Dublin's pupils
- Since 2015/16
- +0.2%
- 4,385 pupils in 2015/16
- Average school size
- 313.9
- Dublin: 289.6
- Average class size
- 23.08
- Dublin: 22.23
Trends in Dunlaoghaire
Each year counts the schools in this planning area today, plus any that closed from 2023/24. Dotted lines bridge 1983/84 to 1992/93. 1974/75 is left out because that year's source file is missing five counties.
The Department's files only record planning areas from 2023/24, so schools that closed or amalgamated before then aren't counted in any area. The further back you go, the more pupils are missing, and an amalgamation can look like a sudden rise. Across County Dublin, schools with no planning area had 1.5% of pupils in 2015/16, 5.3% in 2005/06 and 36.8% in 1975/76. Known data issues
Pupils
4,394
−81 on 2024/25
Schools
14
10 in 1975/76
Average pupils per school
313.9
373.1 in 1975/76
Average class size
23.08
−0.44 on 2024/25
Pupils in these schools
Junior infants, girls and boys, and Irish-medium schools over time, for the same schools as the trends above.
Junior infants
Pupils starting school each year. Class-by-class figures start in 2020/21. 502 in 2025/26, −17 on 2024/25.
Girls and boys
From 1976/77: earlier files don't split every school's pupils into girls and boys.
Irish-medium schools
Pupils in schools that teach all subjects through Irish (1 school today). 485 pupils in 2025/26, 11.0% of the area's pupils, against 11.1% in 2015/16. Each school counts under its current classification for every year.
Growing and falling since 2015/16
Each school's change in pupils over 10 years, from 2015/16 to 2025/26. A change of 10% or more either way counts as growing or falling.
13 schools with figures for both years
Schools still filling their classes in 2015/16, and schools opened since, are listed separately.
Sort the table below by the change column to see which schools grew or fell most.
Newer schools
1 school still filling its classes in 2015/16 or opened since, with 177 pupils. It isn’t in the figures above.
- Dun Laoghaire ETNSMonkstown · opened 2017/18 177
Class sizes
Mainstream class groups only. The source does not identify which standard/year group each class group belongs to.
- Average class size
- 23.08
- Mainstream classes
- 188
- Classes of 30 or more
- 14
- Schools with a class of 30+
- 5
Teachers
Teachers in the 14 mainstream primary schools here, 2006/07 to 2025/26. Class teachers are counted every year; all teaching posts where they're known.
- Class teachers in 2025/26
- 188
- Up 41 since 2006/07, while pupils rose 14%
- Teaching posts in 2025/26
- about 274
- Estimate: 188 class teachers, 12 principals and deputies, 65 special education and 9 special class teachers
- Teachers in 2015/16
- 242
- The Department's last count of every teacher
- Since 2024/25
- 2 / 2
- 2 schools gained a class teacher, 2 lost one
Class teachers since 2006/07
One for each mainstream class, every school year
Special schools and special classes
5 special schools in Dunlaoghaire, and the special classes in its 14 mainstream schools. Special schools aren't counted in the pupils, class sizes or teachers above.
- Pupils in special schools
- 354
- In 5 schools, up from 342 in 2015/16
- Special classes in 2025/26
- 9
- In 6 of 14 schools. 6 in 2021/22
- Allocated for 2026/27
- 13
- In 7 schools: 4 new classes, 1 school with its first
- Autism classes
- 8
- 89% of special classes
Special classes since 2021/22
In Dunlaoghaire's mainstream schools, from the NCSE's yearly lists
- 2021/22 6
- 2022/23 6
- 2023/24 6
- 2024/25 9
- 2025/26 9
- 2026/27 13
2026/27, dashed: allocated for next year.
| Special school | Pupils | Since 2015/16 | Teaching posts | SNAs |
|---|---|---|---|---|
| St Augustines SchoolBlackrock · Mild general learning disability | 157 |
−9.8%
|
22 | 32 |
| Setanta Special SchoolStillorgan · Autism | 68 |
+17.2%
|
12 | 35 |
| St Oliver Plunkett SP SCBlackrock · Specific learning disability | 63 |
0.0%
|
9 | 5 |
| Carmona Special National SchoolDun Laoghaire · Severe or profound general learning disability | 37 |
+5.7%
|
9.6 | 24 |
| Red Door Special SchoolMonkstown · Autism | 29 |
+141.7%
|
6 | 24.5 |
Sources: Department of Education enrolment lists; NCSE special class lists and special school allocations (CC BY 4.0).
Schools
14 schools, largest first.
Select a column heading to sort
| Roll number | |||||||
|---|---|---|---|---|---|---|---|
| The Harold SchoolGlasthule | 20141G | 642 |
−2.4%
−5.6%
+30.8%
|
27 | 23.56 | 28 | 0 |
| Scoil Padraig Naofa BBlackrock | 19258U | 499 |
−17.9%
−22.9%
−16.8%
|
21 | 23.48 | 30 | 1 |
| Scoil LorcáinBaile na Manach | 18451J | 485 |
−0.6%
−0.6%
+11.2%
|
19 | 25.53 | 31 | 9 |
| St Patricks GNSDublin 18 | 19259W | 478 |
−14.5%
−15.2%
+1.3%
|
20 | 23.90 | 35 | 2 |
| Oatlands Primary School, An Edmund Rice SchoolBlackrock | 17954H | 428 |
−4.0%
−0.7%
+44.6%
|
17 | 25.18 | 30 | 1 |
| Scoil na nAingealBlackrock | 19335M | 410 |
−4.4%
−11.4%
−7.2%
|
17 | 24.12 | 28 | 0 |
| St JosephsDun Laoghaire | 19938T | 370 |
+9.1%
+174.1%
+176.1%
|
17 | 21.35 | 27 | 0 |
| Loreto National SchoolDalkey | 19066L | 314 |
−3.7%
−16.9%
+1.6%
|
12 | 25.17 | 29 | 0 |
| Clochar San DominicDun Laoghaire | 05600C | 184 |
−10.7%
−6.6%
−7.1%
|
10 | 17.20 | 21 | 0 |
| Dun Laoghaire ETNSMonkstown | 20503O | 177 |
+103.4%
–– |
8 | 22.12 | 32 | 1 |
| Holy Family SchoolGlenageary | 19840C | 149 |
+0.7%
+26.3%
+24.2%
|
8 | 17.12 | 22 | 0 |
| Harold Boys N SDalkey | 15132B | 106 |
−15.2%
−12.4%
+34.2%
|
5 | 21.20 | 25 | 0 |
| Dalkey N S (2)Dalkey | 14647G | 101 |
−3.8%
+1.0%
+4.1%
|
4 | 25.25 | 27 | 0 |
| All Saints N SBlackrock | 10494K | 51 |
−8.9%
−19.0%
−8.9%
|
3 | 17.00 | 20 | 0 |
No schools match that filter.