Scoil Naomh Mearnog
Scoil Naomh Mearnog is a primary school in Dublin. 638 pupils, Catholic ethos, 3 special classes.
The facts
| Type | Primary school |
|---|---|
| Gender | Mixed |
| Ethos | Catholic |
| Patron | Archbishop of Dublin |
| Fees | Free |
| Enrolment | 638 (316 boys, 322 girls) 2025/26 |
| Language of instruction | English Medium School |
| Roll number | 10296G |
| Eircode | D13PF29 |
| Address | Strand Road, Portmarnock, Co. Dublin |
Special classes
3 special classes sanctioned for 26/27:
- 2 × Autism/Autistic Spectrum Disorders
- 1 × Specific Speech and Language Disorder
Source: National Council for Special Education. Children in a special class travel under a separate transport scheme with its own rules.
The area around this school
School planning area: Portmarnock. 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 D13 (Dublin 13) was €551,276 in 2025. That is up 34.5% since 2020. CSO figures for the whole district, not the streets beside the school.
Area profile: the Pobal HP Deprivation Index rates Portmarnock South at 8.18 (Marginally Above Average), where 0 is the national average. 58% of adults there hold a third-level qualification.
Contact
| Principal | Sinéad Trimble |
|---|---|
| Phone | 018462060 |
| stmarnocksns@gmail.com | |
| Local authority | Fingal County Council |
Other schools in Portmarnock
- Malahide / Portmarnock Educate Together National School Primary school, Dublin
- Portmarnock Community School Secondary school, Dublin
- San Nioclas Myra Primary school, Dublin
- St Helens Junior N S Primary school, Dublin
- St Helens Senior N S Primary school, Dublin
How we know
DoE Schools GIS 2026 (CC BY 4.0) — checked 2026-08-27.