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Irish-medium provision

Schools grouped by how much teaching is through Irish, and whether they are in a Gaeltacht area, using the latest official enrolment year.

Teach all subjects through Irish
252
schools, with 43,020 pupils
Share of pupils
8.0%
in schools teaching all subjects through Irish
In Gaeltacht areas
129
schools, with 10,114 pupils
Average class size
22.40
in all-Irish schools; 21.91 where no subjects are taught through Irish

Irish classification and Gaeltacht status

Each box opens the schools in that group, with trends since 1975/76.

Gaeltacht129 schools Non-Gaeltacht2,938 schools All areas
All subjects through Irish 6,841 pupils in 100 schools Average class size 18.88 36,179 pupils in 152 schools Average class size 23.23 43,020 pupils in 252 schools Average class size 22.40
Some subjects through Irish 836 pupils in 7 schools Average class size 21.21 4,513 pupils in 19 schools Average class size 21.52 5,349 pupils in 26 schools Average class size 21.47
No subjects through Irish 2,437 pupils in 22 schools Average class size 20.23 484,794 pupils in 2,767 schools Average class size 21.92 487,231 pupils in 2,789 schools Average class size 21.91

Share of pupils

By Irish classification

By Gaeltacht status

Compare groups

Mainstream class groups only. The source does not identify which standard/year group each class group belongs to. Class sizes are for 2025/26.
All subjects through Irish 252 43,020 170.7 22.40 1,889 157
Some subjects through Irish 26 5,349 205.7 21.47 239 6
No subjects through Irish 2,789 487,231 174.7 21.91 21,590 1,088
Gaeltacht 129 10,114 78.4 19.36 513 26
Non-Gaeltacht 2,938 525,486 178.9 22.00 23,205 1,225