| Postal Code | Postal Code Place Name | Autonomous Community | Province |
|---|
| 12001 | Castellón de la Plana/Castelló de la Plana | Valencian Community | Castellón/Castelló |
| 12002 | Castellón de la Plana/Castelló de la Plana | Valencian Community | Castellón/Castelló |
| 12003 | Castellón de la Plana/Castelló de la Plana | Valencian Community | Castellón/Castelló |
| 12004 | Castellón de la Plana/Castelló de la Plana | Valencian Community | Castellón/Castelló |
| 12005 | Castellón de la Plana/Castelló de la Plana | Valencian Community | Castellón/Castelló |
| 12006 | Castellón de la Plana/Castelló de la Plana | Valencian Community | Castellón/Castelló |
| 12100 | Castellón de la Plana/Castelló de la Plana | Valencian Community | Castellón/Castelló |
| 12110 | l'Alcora | Valencian Community | Castellón/Castelló |
| 12118 | Useras/les Useres | Valencian Community | Castellón/Castelló |
| 12119 | Costur | Valencian Community | Castellón/Castelló |
| 12120 | Lucena del Cid | Valencian Community | Castellón/Castelló |
| 12121 | l'Alcora | Valencian Community | Castellón/Castelló |
| 12122 | Figueroles | Valencian Community | Castellón/Castelló |
| 12123 | Castillo de Villamalefa | Valencian Community | Castellón/Castelló |
| 12124 | Villahermosa del Río | Valencian Community | Castellón/Castelló |
| 12125 | Zucaina | Valencian Community | Castellón/Castelló |
| 12126 | Cortes de Arenoso | Valencian Community | Castellón/Castelló |
| 12127 | Cortes de Arenoso | Valencian Community | Castellón/Castelló |
| 12130 | Sant Joan de Moró | Valencian Community | Castellón/Castelló |
| 12131 | Useras/les Useres | Valencian Community | Castellón/Castelló |
| 12132 | Atzeneta del Maestrat | Valencian Community | Castellón/Castelló |
| 12133 | Atzeneta del Maestrat | Valencian Community | Castellón/Castelló |
| 12134 | Benafigos | Valencian Community | Castellón/Castelló |
| 12135 | Vistabella del Maestrat | Valencian Community | Castellón/Castelló |
| 12140 | Albocàsser | Valencian Community | Castellón/Castelló |
| 12150 | Villafranca del Cid/Vilafranca | Valencian Community | Castellón/Castelló |
| 12159 | Castellfort | Valencian Community | Castellón/Castelló |
| 12160 | Benassal | Valencian Community | Castellón/Castelló |
| 12161 | la Torre d'En Besora | Valencian Community | Castellón/Castelló |
| 12162 | Vilar de Canes | Valencian Community | Castellón/Castelló |
| 12163 | Culla | Valencian Community | Castellón/Castelló |
| 12164 | Sierra Engarcerán | Valencian Community | Castellón/Castelló |
| 12165 | Ares del Maestrat | Valencian Community | Castellón/Castelló |
| 12166 | Sierra Engarcerán | Valencian Community | Castellón/Castelló |
| 12170 | Sant Mateu | Valencian Community | Castellón/Castelló |
| 12179 | Tírig | Valencian Community | Castellón/Castelló |
| 12180 | Cabanes | Valencian Community | Castellón/Castelló |
| 12181 | Benlloch | Valencian Community | Castellón/Castelló |
| 12182 | Sierra Engarcerán | Valencian Community | Castellón/Castelló |
| 12183 | Vilanova d'Alcolea | Valencian Community | Castellón/Castelló |
| 12184 | la Serratella | Valencian Community | Castellón/Castelló |
| 12185 | les Coves de Vinromà | Valencian Community | Castellón/Castelló |
| 12186 | la Salzadella | Valencian Community | Castellón/Castelló |
| 12190 | Borriol | Valencian Community | Castellón/Castelló |
| 12191 | la Pobla Tornesa | Valencian Community | Castellón/Castelló |
| 12192 | Vilafamés | Valencian Community | Castellón/Castelló |
| 12193 | Vall d'Alba | Valencian Community | Castellón/Castelló |
| 12194 | Vall d'Alba | Valencian Community | Castellón/Castelló |
| 12200 | Onda | Valencian Community | Castellón/Castelló |
| 12210 | Ribesalbes | Valencian Community | Castellón/Castelló |
| 12220 | Onda | Valencian Community | Castellón/Castelló |
| 12221 | Tales | Valencian Community | Castellón/Castelló |
| 12222 | Alcudia de Veo | Valencian Community | Castellón/Castelló |
| 12223 | Sueras/Suera | Valencian Community | Castellón/Castelló |
| 12224 | Ayódar | Valencian Community | Castellón/Castelló |
| 12225 | Torralba del Pinar | Valencian Community | Castellón/Castelló |
| 12230 | Fanzara | Valencian Community | Castellón/Castelló |
| 12231 | Cirat | Valencian Community | Castellón/Castelló |
| 12232 | Arañuel | Valencian Community | Castellón/Castelló |
| 12300 | Morella | Valencian Community | Castellón/Castelló |
| 12310 | Forcall | Valencian Community | Castellón/Castelló |
| 12311 | Morella | Valencian Community | Castellón/Castelló |
| 12312 | Olocau del Rey | Valencian Community | Castellón/Castelló |
| 12313 | Morella | Valencian Community | Castellón/Castelló |
| 12314 | Morella | Valencian Community | Castellón/Castelló |
| 12315 | Vallibona | Valencian Community | Castellón/Castelló |
| 12316 | Morella | Valencian Community | Castellón/Castelló |
| 12317 | Herbés | Valencian Community | Castellón/Castelló |
| 12318 | Portell de Morella | Valencian Community | Castellón/Castelló |
| 12319 | Morella | Valencian Community | Castellón/Castelló |
| 12320 | Sant Jordi/San Jorge | Valencian Community | Castellón/Castelló |
| 12330 | Traiguera | Valencian Community | Castellón/Castelló |
| 12340 | la Jana | Valencian Community | Castellón/Castelló |
| 12350 | Canet lo Roig | Valencian Community | Castellón/Castelló |
| 12360 | Xert | Valencian Community | Castellón/Castelló |
| 12370 | Xert | Valencian Community | Castellón/Castelló |
| 12400 | Segorbe | Valencian Community | Castellón/Castelló |
| 12410 | Altura | Valencian Community | Castellón/Castelló |
| 12412 | Segorbe | Valencian Community | Castellón/Castelló |
| 12413 | Castellnovo | Valencian Community | Castellón/Castelló |
| 12414 | Vall de Almonacid | Valencian Community | Castellón/Castelló |
| 12415 | Gaibiel | Valencian Community | Castellón/Castelló |
| 12420 | Barracas | Valencian Community | Castellón/Castelló |
| 12428 | Puebla de Arenoso | Valencian Community | Castellón/Castelló |
| 12429 | El Toro | Valencian Community | Castellón/Castelló |
| 12430 | Bejís | Valencian Community | Castellón/Castelló |
| 12431 | Torás | Valencian Community | Castellón/Castelló |
| 12440 | Caudiel | Valencian Community | Castellón/Castelló |
| 12447 | Montán | Valencian Community | Castellón/Castelló |
| 12448 | Montanejos | Valencian Community | Castellón/Castelló |
| 12449 | Benafer | Valencian Community | Castellón/Castelló |
| 12450 | Jérica | Valencian Community | Castellón/Castelló |
| 12460 | Viver | Valencian Community | Castellón/Castelló |
| 12469 | Viver | Valencian Community | Castellón/Castelló |
| 12470 | Navajas | Valencian Community | Castellón/Castelló |
| 12480 | Soneja | Valencian Community | Castellón/Castelló |
| 12489 | Sot de Ferrer | Valencian Community | Castellón/Castelló |
| 12490 | Azuébar | Valencian Community | Castellón/Castelló |
| 12499 | Chóvar | Valencian Community | Castellón/Castelló |
| 12500 | Vinaròs | Valencian Community | Castellón/Castelló |
| 12510 | San Rafael del Río | Valencian Community | Castellón/Castelló |
| 12511 | Rossell | Valencian Community | Castellón/Castelló |
| 12512 | Rossell | Valencian Community | Castellón/Castelló |
| 12513 | Catí | Valencian Community | Castellón/Castelló |
| 12520 | Nules | Valencian Community | Castellón/Castelló |
| 12526 | la Vilavella | Valencian Community | Castellón/Castelló |
| 12527 | Artana | Valencian Community | Castellón/Castelló |
| 12528 | Eslida | Valencian Community | Castellón/Castelló |
| 12529 | Nules | Valencian Community | Castellón/Castelló |
| 12530 | Borriana/Burriana | Valencian Community | Castellón/Castelló |
| 12539 | les Alqueries/Alquerías del Niño Perdido | Valencian Community | Castellón/Castelló |
| 12540 | Vila-real | Valencian Community | Castellón/Castelló |
| 12549 | Betxí | Valencian Community | Castellón/Castelló |
| 12550 | Almazora/Almassora | Valencian Community | Castellón/Castelló |
| 12560 | Benicasim/Benicàssim | Valencian Community | Castellón/Castelló |
| 12570 | Alcalà de Xivert | Valencian Community | Castellón/Castelló |
| 12578 | Cervera del Maestre | Valencian Community | Castellón/Castelló |
| 12579 | Alcalà de Xivert | Valencian Community | Castellón/Castelló |
| 12580 | Benicarló | Valencian Community | Castellón/Castelló |
| 12589 | Càlig | Valencian Community | Castellón/Castelló |
| 12590 | Almenara | Valencian Community | Castellón/Castelló |
| 12591 | la Llosa | Valencian Community | Castellón/Castelló |
| 12592 | Chilches/Xilxes | Valencian Community | Castellón/Castelló |
| 12593 | Moncofa | Valencian Community | Castellón/Castelló |
| 12594 | Oropesa del Mar/Orpesa | Valencian Community | Castellón/Castelló |
| 12595 | Cabanes | Valencian Community | Castellón/Castelló |
| 12596 | Torreblanca | Valencian Community | Castellón/Castelló |
| 12597 | Santa Magdalena de Pulpis | Valencian Community | Castellón/Castelló |
| 12598 | Peníscola/Peñíscola | Valencian Community | Castellón/Castelló |
| 12599 | la Pobla de Benifassà | Valencian Community | Castellón/Castelló |
| 12600 | la Vall d'Uixó | Valencian Community | Castellón/Castelló |
| 12609 | Alfondeguilla | Valencian Community | Castellón/Castelló |