| Street | Odd | Even | Postal code |
|---|---|---|---|
| Abendaño | 01008 | ||
| Abetxuco | 01013 | ||
| Abrahan Lincoln | 01015 | ||
| Abrevadero, El | 01001 | ||
| Acacias, Las | 01013 | ||
| Adriano Vi | 01008 | ||
| Adurtza | 01006 | ||
| Agirrelanda | 01013 | ||
| Aguirre Miramon | 01006 | ||
| Aitzol | 01010 | ||
| Aizkorri | 01006 | ||
| Ajanalde | 01015 | ||
| Alava | 01006 | ||
| Albertia | 01006 | ||
| Alberto Schommer | 01006 | ||
| Alboka | 01006 | ||
| Aldabe | 01012 | ||
| Alfonso Xi | 01010 | ||
| Alfredo Donay | 01013 | ||
| Ali | 01010 | ||
| Alibarra | 01010 | ||
| Alto De Armentia | 01007 | ||
| Alto Del Prado | 01007 | ||
| Amadis | 01010 | ||
| Amizkarra | 01002 | ||
| Amsterdan | 01002 | ||
| Amurrio | 01013 | ||
| Anboto | 01006 | ||
| Andalucia | 0001-0025 | 0002-0026 | 01003 |
| Andalucia | 0027-9999 | 0028-9998 | 01002 |