| School | Roll number | Total (latest year) | Latest average class size | Largest class | Classes 30+ |
|---|---|---|---|---|---|
| ST CANICES CENTRAL N S | 19626A | 648 | 26.25 | 30 | 1 |
| St. John's National School | 20600M | 441 | 21.15 | 28 | 0 |
| GAELSCOIL OSRAI | 19856R | 438 | 24.00 | 29 | 0 |
| Bunscoil McAuley Rice | 20255V | 406 | 23.53 | 28 | 0 |
| SCOIL MHUIRE | 19925K | 400 | 22.53 | 29 | 0 |
| St Mary's National School | 20272V | 398 | 23.12 | 29 | 0 |
| S N PADRAIG NAOFA | 17854D | 331 | 22.36 | 28 | 0 |
| SCOIL NAOMH EOIN DEA | 17314R | 330 | 23.57 | 32 | 2 |
| SCOIL IOGNAID DE RIS | 17867M | 278 | 24.73 | 32 | 1 |
| Scoil Mhuire | 20492M | 261 | 22.64 | 32 | 2 |
| S N BAILE AN PHIULL | 17357M | 254 | 22.00 | 27 | 0 |
| KILKENNY SCHOOL PROJECT | 19905E | 236 | 26.22 | 28 | 0 |
| Scoil an Chroí Ró-Naofa | 19930D | 223 | 24.11 | 31 | 1 |
| SCOIL BHRIDE B7C | 18078N | 217 | 26.38 | 30 | 1 |
| SLIEVERUE MIXED N S | 12476S | 208 | 23.11 | 30 | 2 |
| BENNETTSBRIDGE NATIONAL SCHOOL | 16406R | 206 | 25.75 | 30 | 1 |
| S N NAOMH COLMAIN | 16116I | 204 | 24.75 | 29 | 0 |
| S N NAOMH PADRAIGH | 16875G | 202 | 25.25 | 28 | 0 |
| SCOIL LACHTAIN | 00796U | 201 | 22.88 | 31 | 1 |
| KILKENNY MIXED N S | 17218V | 198 | 24.75 | 28 | 0 |
| S N MUIRE | 18064C | 197 | 23.12 | 27 | 0 |
| CHURCH HILL MIXED N S | 05927L | 192 | 22.50 | 25 | 0 |
| S N BHREANDAIN NAOFA | 17093E | 192 | 24.00 | 27 | 0 |
| St. Senan's National School | 20443W | 176 | 25.14 | 31 | 2 |
| ST AIDANS N S | 19344N | 175 | 25.00 | 34 | 3 |
| ST BEACONS N S | 19976E | 175 | 25.00 | 33 | 2 |
| S N NAOMH PADRAIG MXD | 17628R | 173 | 24.71 | 35 | 2 |
| Ballyragget National School | 20506U | 163 | 25.17 | 30 | 1 |
| S N MUIRE GAN SMAL | 17224Q | 148 | 21.67 | 25 | 0 |
| Scoil Mholainge Listerlin | 18748J | 148 | 24.67 | 29 | 0 |
| S N CHIARAN NAOFA | 17589K | 142 | 21.33 | 26 | 0 |
| S N AN MOININ RUA | 16204F | 127 | 25.40 | 33 | 1 |
| SCOIL NAOMH IOSEPH | 18607O | 127 | 24.20 | 35 | 1 |
| CARIGEEN N S | 15340I | 123 | 22.40 | 26 | 0 |
| Scoil Íosagáin | 20591O | 121 | 17.29 | 26 | 0 |
| S N San Nioclas | 18660S | 120 | 22.80 | 27 | 0 |
| SCOIL SAN LIONARD | 16827S | 115 | 23.00 | 27 | 0 |
| THE ROWER MIXED N S | 15160G | 115 | 22.00 | 24 | 0 |
| S N CHOLMCILLE | 17073V | 104 | 20.80 | 24 | 0 |
| Owning National School | 16430O | 100 | 25.00 | 26 | 0 |
| LISDOWNEY N S | 00788V | 96 | 22.50 | 27 | 0 |
| S N SEAMUS NAOFA | 18158L | 91 | 20.00 | 24 | 0 |
| S N TULACH RUAIN | 18670V | 91 | 22.75 | 24 | 0 |
| S N NAOMH CHIARAIN | 17339K | 90 | 22.50 | 27 | 0 |
| SKEAGHVASTHEEN N S | 16140F | 85 | 21.25 | 24 | 0 |
| HOLYCROSS N.S. | 18643S | 72 | 18.00 | 22 | 0 |
| GORESBRIDGE N.S. | 19944O | 68 | 17.00 | 25 | 0 |
| Graig na Manach Buac | 16311G | 68 | 21.67 | 26 | 0 |
| ST MICHAELS NATIONAL SCHOOL | 01300Q | 63 | 21.00 | 22 | 0 |
| S N MHICHIL NAOFA | 17222M | 62 | 20.67 | 27 | 0 |
| ST PATRICKS NS | 16445E | 57 | 19.00 | 27 | 0 |
| S N MOIN RUADH MIXED | 17590S | 56 | 18.67 | 23 | 0 |
| S N BAILE AN FHASAIGH | 18257N | 54 | 18.00 | 24 | 0 |
| WANDESFORDE MIXED N S | 14476F | 52 | 17.33 | 19 | 0 |
| ST BRENDANS MIXED N S | 16485Q | 50 | 16.67 | 20 | 0 |
| S N BHRIGHDE | 17174E | 46 | 15.33 | 19 | 0 |
| S N TOBAIR EOIN BAISDE | 17905R | 45 | 15.00 | 20 | 0 |
| BURNCHURCH NATIONAL SCHOOL | 17675D | 44 | 12.67 | 17 | 0 |
| CLONTUBRID MIXED N S | 16865D | 43 | 21.50 | 26 | 0 |
| TEMPLEORUM N S | 19267V | 38 | 19.00 | 23 | 0 |
| Ringville National School | 06621P | 35 | 11.67 | 16 | 0 |
| S N LISNAFUNCHIN | 16230G | 32 | 16.00 | 18 | 0 |
| S N CHRION CHOILL | 17374M | 28 | 14.00 | 18 | 0 |
| S N BHRIDHE | 17566V | 27 | 13.50 | 16 | 0 |
| KILMOGANNY MIXED N S | 07481H | 23 | 11.50 | 13 | 0 |
| COLMCILLE MIXED N S | 17911M | 20 | 10.00 | 12 | 0 |
| S N COLMAIN | 17200C | 20 | 10.00 | 13 | 0 |
| SCOIL MHICHIL NAOFA | 17758H | 14 | 7.00 | 8 | 0 |