| Almuniente | Huesca | 22269 | 1 |
| Almuradiel | Ciudad Real | 13760 | 1 |
| Almussafes | Valencia | 46440 | 1 |
| Almuñécar | Granada | 18690–18697 | 2 |
| Almàssera | Valencia | 46132 | 1 |
| Almócita | Almería | 04458 | 1 |
| Alocén | Guadalajara | 19133 | 1 |
| Alonsotegi | Bizkaia | 48810 | 1 |
| Alosno | Huelva | 21520–21530 | 2 |
| Alovera | Guadalajara | 19208 | 1 |
| Alozaina | Málaga | 29567 | 1 |
| Alp | Girona | 17537–17538 | 2 |
| Alpandeire | Málaga | 29460 | 1 |
| Alpanseque | Soria | 42213 | 1 |
| Alpartir | Zaragoza | 50109 | 1 |
| Alpedrete | Madrid | 28430 | 1 |
| Alpens | Barcelona | 08587 | 1 |
| Alpera | Albacete | 02690 | 1 |
| Alpujarra de la Sierra | Granada | 18450–18460 | 2 |
| Alqueria de la Comtessa, l' | Valencia | 46715 | 1 |
| Alquerías del Niño Perdido | Castellón | 12539 | 1 |
| Alquézar | Huesca | 22145 | 1 |
| Alsodux | Almería | 04568 | 1 |
| Alt Àneu | Lleida | 25286–25589 | 4 |
| Altafulla | Tarragona | 43893 | 1 |
| Altarejos | Cuenca | 16195–16780 | 2 |
| Altea | Alicante | 03590–03599 | 2 |
| Altorricón | Huesca | 22540 | 1 |
| Altos, Los | Burgos | 09146–09551 | 2 |
| Altsasu/Alsasua | Navarra | 31800 | 1 |
| Altura | Castellón | 12410 | 1 |
| Alustante | Guadalajara | 19320 | 1 |
| Alzira | Valencia | 46268–46792 | 3 |
| Alàs i Cerc | Lleida | 25715–25718 | 2 |
| Alía | Cáceres | 10137 | 1 |
| Alòs de Balaguer | Lleida | 25737 | 1 |
| Amavida | Ávila | 05560 | 1 |
| Amayuelas de Arriba | Palencia | 34429 | 1 |
| Ambite | Madrid | 28580 | 1 |
| Amer | Girona | 17170 | 1 |
| Ames | A Coruña | 15220–15895 | 5 |
| Amezketa | Gipuzkoa | 20268 | 1 |
| Amieva | Asturias | 33557–33558 | 2 |
| Amoeiro | Ourense | 32170–32980 | 3 |
| Amorebieta-Etxano | Bizkaia | 48340 | 1 |
| Amoroto | Bizkaia | 48289 | 1 |
| Amposta | Tarragona | 43549–43879 | 3 |
| Ampudia | Palencia | 34159–34191 | 3 |
| Ampuero | Cantabria | 39840–39850 | 3 |
| Amurrio | Álava | 01450–01470 | 3 |
| Amusco | Palencia | 34419–34420 | 2 |
| Amusquillo | Valladolid | 47177 | 1 |
| Améscoa Baja | Navarra | 31272 | 1 |
| Anadón | Teruel | 44212 | 1 |
| Anaya | Segovia | 40121 | 1 |
| Anaya de Alba | Salamanca | 37863–37864 | 2 |
| Anchuelo | Madrid | 28818 | 1 |
| Anchuras | Ciudad Real | 13117–13118 | 2 |
| Andoain | Gipuzkoa | 20140 | 1 |
| Andorra | Teruel | 44500 | 1 |