# Castell Alun High School

Castell Alun High School is a secondary school in Flintshire.

It had 1,283 pupils at the school census in January 2026.

Secondary school. Code W6644017. [Flintshire](https://openindex.co.uk/flintshire)

- Phase: Secondary
- Type: Community
- Pupils: 1,283
- Council: Flintshire
- School number: 6644017

Schools in Wales are inspected by Estyn, which has given no summative grades since September 2022. The Welsh Government publishes no open file of school results, so none are shown.

## Schools nearby

Distances are in a straight line. Admissions and catchments are set by councils and schools.

- [Ysgol Estyn Community School](https://openindex.co.uk/school/ysgol-estyn-community-school-w6642024): 510 m. Primary. Ofsted inspects schools in England only
- [Ysgol Tan y Gaer](https://openindex.co.uk/school/ysgol-tan-y-gaer-w6646008): 940 m. Independent. Ofsted inspects schools in England only
- [Oaklea Grange School](https://openindex.co.uk/school/oaklea-grange-school-w6656046): 990 m. Independent. Ofsted inspects schools in England only
- [Abermorddu CP School](https://openindex.co.uk/school/abermorddu-cp-school-w6642084): 1.9 km. Primary. Ofsted inspects schools in England only

## Sources and further information

- [Schools: methods, licences and inspection sources](https://openindex.co.uk/sources/schools)

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/school/castell-alun-high-school-w6644017, or to one figure with its anchor, https://openindex.co.uk/school/castell-alun-high-school-w6644017#sc-sources.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/school/castell-alun-high-school-w6644017