| Abaurregaina/Abaurrea Alta | 31692 | 1 |
| Aberin | 31264 | 1 |
| Ablitas | 31523 | 1 |
| Abárzuza/Abartzuza | 31178 | 1 |
| Adiós | 31153 | 1 |
| Aibar/Oibar | 31460 | 1 |
| Allo | 31262 | 1 |
| Altsasu/Alsasua | 31800 | 1 |
| Améscoa Baja | 31272 | 1 |
| Andosilla | 31261 | 1 |
| Aoiz/Agoitz | 31430 | 1 |
| Araitz | 31891 | 1 |
| Arakil | 31849–31868 | 3 |
| Aranarache / Aranaratxe | 31271 | 1 |
| Aranguren | 31192 | 1 |
| Arano | 31754 | 1 |
| Arantza | 31790 | 1 |
| Aras | 31239 | 1 |
| Arbizu | 31839 | 1 |
| Arcos, Los | 31210 | 1 |
| Arellano | 31263 | 1 |
| Areso | 31876 | 1 |
| Arguedas | 31513 | 1 |
| Arruazu | 31840 | 1 |
| Arróniz | 31243 | 1 |
| Artajona | 31140 | 1 |
| Artazu | 31109 | 1 |
| Atez | 31193–31867 | 2 |
| Auritz/Burguete | 31640 | 1 |
| Ayegui / Aiegi | 31208–31240 | 2 |
| Azagra | 31560 | 1 |
| Añorbe | 31154 | 1 |
| Bakaiku | 31810 | 1 |
| Barásoain | 31395 | 1 |
| Basaburua | 31866–31869 | 2 |
| Baztan | 31700–31796 | 9 |
| Beintza-Labaien | 31753 | 1 |
| Beire | 31393 | 1 |
| Bera | 31780–31789 | 2 |
| Berbinzana | 31252 | 1 |
| Berrioplano/Berriobeiti | 31013–31195 | 2 |
| Bertizarana | 31792–31793 | 2 |
| Betelu | 31890 | 1 |
| Biurrun-Olcoz | 31398 | 1 |
| Burgui/Burgi | 31412 | 1 |
| Burlada/Burlata | 31600 | 1 |
| Buñuel | 31540 | 1 |
| Cabanillas | 31511 | 1 |
| Cadreita | 31515 | 1 |
| Caparroso | 31380 | 1 |
| Carcastillo | 31310–31311 | 2 |
| Cascante | 31520 | 1 |
| Castejón | 31590 | 1 |
| Castillonuevo | 31454 | 1 |
| Cendea de Olza/Oltza Zendea | 31170–31173 | 3 |
| Cintruénigo | 31592 | 1 |
| Cirauqui/Zirauki | 31131 | 1 |
| Cizur | 31190 | 1 |
| Corella | 31591 | 1 |
| Cortes | 31530 | 1 |