Coláiste Ailigh
Coláiste Ailigh is a secondary school irish-medium in Donegal. 324 pupils, Inter-denominational ethos.
The facts
| Type | Secondary school |
|---|---|
| Gender | Mixed |
| Ethos | Inter-denominational |
| Patron | Donegal ETB |
| Fees | Free |
| Enrolment | 324 (142 boys, 182 girls) 2025/26 |
| Language of instruction | Irish Medium School |
| Roll number | 76081F |
| Eircode | F92N2HE |
| Address | Cnoc na Móna, Leitir Ceanainn, Co Dhún na nGall |
Special classes
The NCSE lists no special class at this school for the coming year.
The area around this school
School planning area: Letterkenny. This is how the Department plans where to build capacity. It is not a catchment.
Local house prices: the median residential sale price in Eircode district F92 (Letterkenny) was €214,500 in 2025. That is up 46.7% since 2020. CSO figures for the whole district, not the streets beside the school.
Area profile: the Pobal HP Deprivation Index rates Letterkenny Rural at -2.29 (Marginally Below Average), where 0 is the national average. 44% of adults there hold a third-level qualification.
Contact
| Principal | Seán Mac Suibhne |
|---|---|
| Phone | 0749125943 |
| colaisteailigh@donegaletb.ie | |
| Local authority | Donegal County Council |
Other schools in Letterkenny
- Cashelshanaghan N S Primary school, Donegal
- Errigal College Secondary school, Donegal
- Gaelscoil Adhamhnain Primary school, Donegal
- Gartan N S Primary school, Donegal
- Glenswilly N S Primary school, Donegal
- Letterkenny Educate Together Ns Primary school, Donegal
- Little Angels Spec Sch Special school, Co. Donegal
- Loreto Secondary School Secondary school, Donegal
- Moyle N S Primary school, Donegal
- Ray N S Primary school, Donegal
- S N Baile Raighin Primary school, Donegal
- S N Muire Gan Smal Primary school, Donegal
How we know
DoE Schools GIS 2026 (CC BY 4.0) — checked 2026-08-27.