| School | Roll number | County | Total (latest year) | Latest average class size | Largest class | Classes 30+ |
|---|---|---|---|---|---|---|
| Athenry Primary School | 20582N | Galway | 501 | 23.57 | 29 | 0 |
| S N CREACHMHAOIL | 05754G | Galway | 318 | 23.54 | 27 | 0 |
| SN MUINE MHEA | 18746F | Galway | 251 | 24.60 | 35 | 1 |
| S N BHRIDE | 12954F | Galway | 229 | 25.44 | 33 | 2 |
| S N MHUIRE | 17771W | Galway | 229 | 25.44 | 30 | 1 |
| S N NAOMH PADRAIG | 16936A | Galway | 221 | 22.10 | 31 | 2 |
| ST OLIVER PLUNKETTS NS | 19449E | Galway | 199 | 24.88 | 28 | 0 |
| TOGALA MHUIRE | 18097R | Galway | 198 | 24.75 | 29 | 0 |
| S N CILLININ | 18268S | Galway | 195 | 24.38 | 31 | 1 |
| GAELSCOIL RIADA | 20237T | Galway | 158 | 22.57 | 27 | 0 |
| Annagh Hill NS | 20448J | Galway | 105 | 21.00 | 29 | 0 |
| S N na Fuar Coilleadh | 17051L | Galway | 100 | 25.00 | 28 | 0 |
| CRUMLIN N S | 12606F | Galway | 95 | 23.75 | 26 | 0 |
| CARNAIN N.S. | 14031N | Galway | 89 | 22.25 | 30 | 1 |
| S N NAOMH UINSEANN | 16857E | Galway | 67 | 16.75 | 24 | 0 |
| ESKER N S | 01000E | Galway | 65 | 21.67 | 35 | 1 |
| GURTEEN CENTRAL NS | 19770H | Galway | 49 | 16.33 | 23 | 0 |