School planning area

Castledermot

4 primary schools and 556 pupils in 2025/26, in County Kildare.

Pupils in 2025/26
556
−17 on 2024/25
Since 2015/16
−10.3%
620 pupils in 2015/16
Schools
4
No change on 2024/25
Average class size
20.92
Average school size: 139.0

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.

Earlier years are incomplete

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 Kildare, schools with no planning area had 1.6% of pupils in 2015/16, 5.5% in 2005/06 and 24.2% in 1975/76. Known data issues

Pupils

556

−17 on 2024/25

1975/762025/26

Schools

4

3 in 1975/76

1975/762025/26

Average pupils per school

139.0

92.0 in 1975/76

1975/762025/26

Average class size

20.92

−0.66 on 2024/25

2006/072025/26

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. 56 in 2025/26, −1 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

No school in this area teaches all subjects through Irish.

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.

Every school's change

4 schools with figures for both years

2fell by 10% or more
2within 10%
0grew by 10% or more
Down 25% or more · 2Down 10 to 25% · 0Within 10% · 2Up 10 to 25% · 0Up 25% or more · 0

Sort the table below by the change column to see which schools grew or fell most.

Class sizes

Mainstream class groups only. The source does not identify which standard/year group each class group belongs to.

Average class size
20.92
Mainstream classes
26
Classes of 30 or more
0
Schools with a class of 30+
0

Teachers

Teachers in the 4 mainstream primary schools here, 2006/07 to 2025/26. Class teachers are counted every year; all teaching posts where they're known.

How we count teachers
Class teachers in 2025/26
26
Up 7 since 2006/07, while pupils rose 16%
Teaching posts in 2025/26
about 38
Estimate: 26 class teachers, 1 principals and deputies, 9 special education and 2 special class teachers
Teachers in 2015/16
32
The Department's last count of every teacher
Since 2024/25
0 / 0
0 schools gained a class teacher, 0 lost one

Class teachers since 2006/07

One for each mainstream class, every school year

Special schools and special classes

0 special schools in the Castledermot planning area, and the special classes in the 4 mainstream schools. Special schools aren't counted in the pupils, class sizes or teachers above.

All special schools
Pupils in special schools
0
No special school here
Special classes in 2025/26
2
In 1 of 4 schools. 2 in 2022/23
Allocated for 2026/27
2
In 1 school
Autism classes
2
100% of special classes

Special classes since 2022/23

In the Castledermot planning area's mainstream schools, from the NCSE's yearly lists

  • 2022/23 2
  • 2023/24 2
  • 2024/25 2
  • 2025/26 2
  • 2026/27 2

2026/27, dashed: allocated for next year.

Sources: Department of Education enrolment lists; NCSE special class lists and special school allocations (CC BY 4.0).

Schools

4 schools, largest first. A dash in the change column means the school had no pupils recorded in that year, usually because it opened later or took a new roll number after an amalgamation.

Change over

Select a column heading to sort

Roll number
Scoil DiarmadaCastledermot 19786W 344
−3.9%
14 23.71 29 0
S N Colmcill NaofaAthy 17787O 129
−3.7%
6 21.50 29 0
S N Cill CaeAthy 17714K 49
−33.8%
3 16.33 20 0
S N Naomh LorcainAthy 18063A 34
−37.0%
3 11.33 16 0