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Mercy College Coolock

Mercy College Coolock is a secondary school girls only in Dublin. 402 pupils, Catholic ethos, 1 special class, DEIS Post-primary.

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The facts

TypeSecondary school
GenderGirls only
EthosCatholic
PatronCEIST
FeesFree
Enrolment402 (0 boys, 402 girls) 2025/26
Language of instructionEnglish Medium School
DEISYes — Post-primary
Roll number60871V
EircodeD05C958
AddressSt Brendan's Drive, Malahide Road, Coolock, Dublin 5

What DEIS means here

DEIS Post-primary. This is extra staffing, a Home School Community Liaison coordinator, School Completion Programme access, enhanced capitation, free State exam fees, and eligibility for the HEAR Scheme for reduced-points college entry.

Post-primary DEIS benefits: Free State examination fees for Junior Cycle and Leaving Certificate, Home School Community Liaison (HSCL) coordinator, School Completion Programme, and eligibility for the HEAR Scheme (Higher Education Access Route) offering reserved university places at reduced CAO points across Irish universities.

Worth knowing: several things people associate with DEIS are now available in every school. Schoolbooks are free at primary and post-primary regardless of DEIS status, and since 2025 all primary schools are eligible for the hot school meals programme. What remains specific to DEIS is the staffing — reduced class sizes in Urban Band 1, the Home School Community Liaison coordinator, School Completion Programme access and enhanced capitation.

Band as published in the Department's DEIS list, last revised 2022-10-12.

What DEIS is, band by band, HEAR college entry, and whether it says anything about how good a school is →

Special classes

1 special class sanctioned for 26/27:

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: Killester / Raheny / Clontarf. 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 D05 (Dublin 5) was €520,000 in 2025. That is up 37.2% since 2020. CSO figures for the whole district, not the streets beside the school.

Area profile: the Pobal HP Deprivation Index rates Harmonstown A at -3.86 (Marginally Below Average), where 0 is the national average. 32% of adults there hold a third-level qualification.

Contact

PrincipalPatricia Dwyer
Phone018480888
Emailinfo@mercycoolock.ie
Local authorityDublin City Council

Other schools in Killester / Raheny / Clontarf

How we know

DoE Schools GIS 2026 (CC BY 4.0) — checked 2026-08-27.