Primary School

St. Marnock's

Portmarnock, Dublin
Mixed

School Details

Address
Strand Road, Portmarnock
Location
Portmarnock, Dublin
School Type
Primary
Total Enrollment (2025/26)
638 students
Enrollment Split
322 Girls, 316 Boys
Ethos
Catholic
Irish Classification
No subjects through Irish
Gender
Mixed
Roll Number
10296G
Latest Inspection Reports
View on gov.ie

Location

About

St. Marnock’s National School is a Catholic, co‑educational primary school situated on Strand Road in Portmarnock, County Dublin. It welcomes children from Junior Infants through to Sixth Class, providing a holistic education that balances academic learning with personal, social and emotional development. The school works closely with parents and the local community, fostering a caring and inclusive environment where each pupil can develop their talents and reach their full potential in a safe, supportive setting. The curriculum is complemented by a wide range of extra‑curricular opportunities, including Gaelic games, athletics, rugby, and a dedicated Multipurpose Play Area that supports both physical activity and creative play. Specialist provision is available through speech and language support, as well as dedicated autism, Developmental Language Disorder (DLD) and Speech Sound Disorder (SSD) classes. The school also maintains clear policies on uniform, cyber safety, mobile device use and health, ensuring a well‑structured and modern learning environment for over 600 enrolled children.

History

Founded in 1868, St. Marnock’s National School originated from a building erected in 1867 with private funds from John Jameson. It achieved National School status on 1 July 1869. The school moved to its present site in 1965, adding six new classrooms for 152 pupils. Subsequent extensions were completed in 1975, 1988 and 2017/2018 to accommodate a growing enrolment, which now exceeds 600 children. Named after St. Marnock, a disciple of St. Patrick who ministered locally in the 5th century, the school continues its long tradition of community service and educational excellence.