Castlederg High School
16 Castlegore Road, Castlederg, BT81 7RU · Derry City And Strabane
Castlederg’s School Grade C against Northern Ireland’s towns
What stands out about Castlederg High School
- Its own letter, B+: 68% of Year 12 got 5+ GCSEs A*–C with English and maths, against 60% at the average non-grammar school
- Mostly one community: 5% Catholic, 87% Protestant and 8% other or none
- A sixth form of 64: 53% of its A-level pupils got 3+ A*–C
- 34 of 450 places free this year
Results
DE · exams 2024/25 · 91 Year 12 pupilsEach bar is a group of schools. The schools Castlederg High School beats are shaded green.
5+ GCSEs A*–C with English and maths 68%
Against Northern Ireland’s 120 non-grammar schools: higher than 70%. Against all 186: higher than 47%.
3+ A-levels A*–C 53%
32 final-year A-level pupils · higher than 25% of Northern Ireland’s 155 schools with A-level pupils
Department of Education, examination performance at post-primary schools 2024/25. Also: 87% got 5+ GCSEs A*–C in any subjects.
Pupils
DE school census · October 2025 · 462 pupilsEach year group
Years 8 to 12 to GCSE, then the sixth form (dark bars).
Who goes here
Pupils by religion.
33 pupils are in Year 13 for 87 in Year 12, about 38 for every 100. 60 pupils are on the special needs register: 14 supported by the school at stages 1 and 2, and 46 with a statement. 4% are newcomer pupils, who don’t yet have the language of the curriculum.
Department of Education, school enrolment, school level data 2025/26: year groups, religion, SEN, newcomers.
Pupil numbers over time
Published school census enrolments, by academic year.
Department of Education school censuses, 2016/17–2025/26. This school’s reference number throughout; primary totals include attached nursery classes. Later workbooks separate specialist provision in mainstream; combined totals are used where published. Missing counts stay missing.
How the letter is worked out
Northern Ireland selects at 11. Grammar schools average 94% of pupils with five good GCSEs including English and maths, non-grammar schools 60%. Ranked against all 186 schools together, a non-grammar school would be held to grammar-school intakes, and a grammar school would look outstanding for its intake alone. So Castlederg High School’s B+ is its place among Northern Ireland’s 120 non-grammar schools: better than 70% of them. Among all schools it is better than 47%.
The bands are the site’s own: A+ is the top 5%, A the next 10%, and so on down to D− for the bottom 5%. It rests on one year’s results; Northern Ireland publishes no progress measure.
Schools near Castlederg High School
Every mainstream school within 3 km. Post-primary schools are squares, with their letter; integrated schools are teal.
The five nearest
- Edwards PS · Controlled · 1.2 km
- St Patrick's PS · Catholic maintained · 1.7 km
- Killen PS · Controlled · 5 km
- St Caireall's PS · Catholic maintained · 7 km
- Ardstraw Jubilee PS · Controlled · 9.7 km
Schools of the same phase near Castlederg High School
Nearest first, within the same nation, as the crow flies. Up to 8 km, or 25 km where there are fewer than three nearby. Catchments and admissions rules decide which school a child gets.
Castlederg High School: common questions
Is Castlederg High School a good school?
By its published GCSE results it earns a B+ among Northern Ireland’s non-grammar schools: 68% of its Year 12 pupils got 5 or more GCSEs at A* to C including English and maths in 2024/25, against 60% at the average non-grammar school.
How many pupils go to Castlederg High School?
462 in October 2025.
Are there places at Castlederg High School?
For 2025/26 the Department of Education counts 34 places free of its approved enrolment of 450. Apply through the Education Authority, in Primary 7.
Not on this page yet: the Education and Training Inspectorate’s latest report and the school’s budget per pupil.
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.