Divine Mercy Junior National School

The facts

What DEIS means here

DEIS Urban Band 1. This is the most intensively supported band. Junior classes are capped at 17:1, vertical schools at 19:1 and senior schools at 21:1 — smaller than almost any non-DEIS school in the country.

17:1 junior class size cap. Urban Band 1 primary schools have the lowest pupil-teacher ratio in Ireland: 17:1 in junior classes (infants to 2nd), 19:1 in vertical schools, and 21:1 in senior schools. That is smaller than almost any fee-paying school in the State.

Added to DEIS in the 2022 expansion, so its supports are relatively recent.

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

2 special classes sanctioned for 26/27:

• 2 × Autism/Autistic Spectrum Disorders

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: Lucan. 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 K78 (Lucan) was €490,000 in 2025. That is up 42.0% since 2020. CSO figures for the whole district, not the streets beside the school.

Area profile: the Pobal HP Deprivation Index rates Clondalkin-cappaghmore at -15.86 (Disadvantaged), where 0 is the national average. 19% of adults there hold a third-level qualification.

Contact

Other schools in Lucan

• Adamstown Castle Educate Together National School Primary school, Dublin
• Adamstown Community College Secondary school, Dublin
• Ballydowd High Support Special School Special school, Palmerstown
• Coláiste Cois Life Secondary school, Dublin
• Coláiste Phádraig Cbs Secondary school, Dublin
• Divine Mercy Senior National School Primary school, Dublin
• Esker Educate Together Ns Primary school, Dublin
• Gaelscoil Eiscir Riada Primary school, Dublin
• Gaelscoil Naomh Padraig Primary school, Dublin
• Griffeen Community College Secondary school, Dublin
• Griffeen Valley Educate Together Ns Primary school, Dublin
• Kishoge Community College Secondary school, Dublin