| School | Roll number | County | Total (latest year) | Latest average class size | Largest class | Classes 30+ |
|---|---|---|---|---|---|---|
| SCOIL MHUIRE B & C | 19927O | Donegal | 489 | 24.00 | 30 | 1 |
| S N AN DROIM MOR | 16349I | Donegal | 229 | 22.11 | 31 | 1 |
| DOOISH N S | 19333I | Donegal | 191 | 22.50 | 30 | 2 |
| S N SEISEADH UI NEILL | 17607J | Donegal | 167 | 20.88 | 30 | 1 |
| St Mary's National School | 14910S | Donegal | 155 | 25.00 | 35 | 1 |
| Scoil Phádraig | 17057A | Donegal | 118 | 23.60 | 29 | 0 |
| ROBERTSON N S | 18731P | Donegal | 89 | 22.25 | 28 | 0 |
| S N GLEANN COIMHEAD | 17575W | Donegal | 57 | 19.00 | 20 | 0 |
| S N TAODHBHOG | 17553M | Donegal | 55 | 18.33 | 22 | 0 |
| S N AN CHOIMIN | 17564R | Donegal | 54 | 18.00 | 22 | 0 |
| S N BAILE AN BHAILSIG | 18703K | Donegal | 47 | 23.50 | 24 | 0 |
| GLENEELY N S | 18172F | Donegal | 45 | 15.00 | 16 | 0 |
| SN Naomh Samhthann | 17040G | Donegal | 40 | 13.33 | 16 | 0 |
| KILLYGORDAN N S | 18874O | Donegal | 22 | 11.00 | 12 | 0 |
| S N DOMHNACH MOR | 17241Q | Donegal | 22 | 11.00 | 14 | 0 |
| SCOIL CHOLMCILLE NAOFA | 17956L | Donegal | 17 | 8.50 | 11 | 0 |