| School | Roll number | County | Total (latest year) |
|---|---|---|---|
| Castlebar Primary School | 20562H | Mayo | 849 |
| ST. JOSEPHS N. S. | 20089H | Mayo | 453 |
| BREAFFY N S | 13781F | Mayo | 386 |
| SCOIL IOSA | 20142I | Mayo | 382 |
| Claremorris National School | 20585T | Mayo | 358 |
| SCOIL PHADRAIG | 20230F | Mayo | 331 |
| ST PETERS NS | 19916J | Mayo | 281 |
| NEWPORT CENTRAL | 19451O | Mayo | 247 |
| GAELSCOIL RAIFTEIRÍ | 19832D | Mayo | 221 |
| BARNACARROLL CENTRAL NS | 19710M | Mayo | 207 |
| S N CNOC RUSCAIGHE | 18712L | Mayo | 207 |
| BALLYVARY CENTRAL N S | 19402B | Mayo | 204 |
| Scoil Naisiunta Balla Aluinn | 17119T | Mayo | 200 |
| S N NAOMH COLM CILLE | 13145A | Mayo | 191 |
| BEACAN MIXED N S | 13659I | Mayo | 170 |
| BRACKLOON N S | 04796R | Mayo | 157 |
| S N PADRAIG NAOFA | 20037L | Mayo | 149 |
| SN na hAille | 12350T | Mayo | 148 |
| KNOCK N S | 16122D | Mayo | 147 |
| BALLINDINE B N S | 01676P | Mayo | 137 |
| S N FAITCHE | 13555T | Mayo | 129 |
| ST PATRICKS CENTRAL NS | 19911W | Mayo | 123 |
| ROBEEN CENTRAL N S | 19394F | Mayo | 118 |
| ST JOSEPHS N S | 13152U | Mayo | 113 |
| S N UILEOG DE BURCA | 19972T | Mayo | 111 |
| S N BRIGHDE | 16756V | Mayo | 109 |
| BALLINTUBBER N S | 07374G | Mayo | 106 |
| S N BEAL CARADH | 17585C | Mayo | 106 |
| ST MARYS N S | 15030Q | Mayo | 95 |
| Scoil Náisiúnta Thuar Mhic Éadaigh | 20256A | Mayo | 92 |
| MOUNT PLEASANT N S | 13500R | Mayo | 91 |
| SN Beal Atha na hEin | 13444K | Mayo | 91 |
| MYNA N S | 16618J | Mayo | 90 |
| S N MAINISTIR MUIGHEO | 14205U | Mayo | 87 |
| St Paul's National School | 17562N | Mayo | 87 |
| MEELICKMORE N S | 12173A | Mayo | 86 |
| S N CHLUAIN LUIFIN | 18922W | Mayo | 79 |
| SCOIL CHOMAIN NAOFA | 17082W | Mayo | 78 |
| S N GORT SCEICHE | 18880J | Mayo | 75 |
| S N Realt na Mara | 17176I | Mayo | 75 |
| S N TEAGHLAIGH NAOFA | 19324H | Mayo | 73 |
| S N LAINN CILLE | 16904K | Mayo | 66 |
| S N B CURNANOOL | 14497N | Mayo | 65 |
| IRISHTOWN N S | 14808E | Mayo | 64 |
| S N NAOMH PADRAIG SAILE | 16052I | Mayo | 59 |
| S N Toin na Gaoithe | 16113C | Mayo | 58 |
| St Mary's National School | 20499D | Mayo | 56 |
| S N NAOMH FEICHIN | 07075T | Mayo | 50 |
| CARRAHOLLY N S | 17483R | Mayo | 49 |
| MUIRISC NS | 16832L | Mayo | 49 |
| S N an Teaghlaigh | 18562S | Mayo | 49 |
| CLOGHER NS | 17482P | Mayo | 48 |
| S N CEATHRU AN CHLOCHAR | 12816Q | Mayo | 45 |
| S N TEACH CAOIN | 17301I | Mayo | 41 |
| S N COILL AN BHAILE | 14064F | Mayo | 40 |
| S N FIONDALBHA | 17678J | Mayo | 39 |
| S N COLM NAOFA | 17682A | Mayo | 33 |
| ST JOHNS NS | 15539I | Mayo | 32 |
| LECANVEY N S | 13797U | Mayo | 31 |
| CARRAKENNEDY N S | 15866A | Mayo | 30 |
| S N GORT AN EADAIN | 13773G | Mayo | 30 |
| S N DUMHACH | 18082E | Mayo | 29 |
| DOOKINELLA N.S. | 14873P | Mayo | 28 |
| CRIMLIN N S | 15967G | Mayo | 27 |
| S N NAOMH BRID C | 18503C | Mayo | 27 |
| S N AN COILL MHOR | 17321O | Mayo | 22 |
| BURRISCARRA N S | 05756K | Mayo | 16 |
| ACHILL SOUND CONVENT NS | 14863M | Mayo | 14 |
| VALLEY N S | 16379R | Mayo | 14 |
| ST PATRICKS NS | 13311O | Mayo | 12 |
| GORTJORDAN N S | 14534Q | Mayo | 11 |
| SN Baile Cuisin | 18876S | Mayo | 11 |
| LEHINCH N S | 05120L | Mayo | 7 |
| S N COILL MOR | 17039V | Mayo | 6 |
| ST COLUMBAS N.S. | 13174H | Mayo | 3 |