| Town Name | Type | Region | Province / State | County | Municipality | Population | Latitude | Longitude | |
|---|---|---|---|---|---|---|---|---|---|
| Ares | town | Galicia | A Coruña | 3814 | 43.426418 | -8.244345 | Map | ||
| Aretxabaleta | village | Euskal Herria / País | Gipuzkoa | 6850 | 43.035973 | -2.503678 | Map | ||
| Arévalo | village | 8114 | 41.063274 | -4.719892 | Map | ||||
| Argamasilla de Alba | village | 7415 | 39.128544 | -3.090509 | Map | ||||
| Argamasilla de Calatrava | village | Castilla-La Mancha | Ciudad Real | 5928 | 38.727295 | -4.079370 | Map | ||
| Arganda del Rey | town | Comunidad de Madrid | Madrid | 46163 | 40.300770 | -3.438069 | Map | ||
| Argentona | town | 11544 | 41.552814 | 2.398179 | Map | ||||
| Argés | village | 5496 | 39.806293 | -4.056902 | Map | ||||
| Arguedas | village | 2380 | 42.176296 | -1.597403 | Map | ||||
| Ariza | village | 1279 | 41.310486 | -2.055255 | Map | ||||
| Arjona | village | 5786 | 37.935600 | -4.054469 | Map | ||||
| Arjonilla | village | 3840 | 37.974098 | -4.106846 | Map | ||||
| Armilla | town | 22507 | 37.143456 | -3.626828 | Map | ||||
| Arnedo | town | 14425 | 42.226917 | -2.100129 | Map | ||||
| Aroche | village | 3017 | 37.943619 | -6.953959 | Map | ||||
| Arquillos | village | 1725 | 38.180950 | -3.427055 | Map | ||||
| Arrasate / Mondragón | town | Gipuzkoa | 22027 | 43.065678 | -2.490078 | Map | |||
| Arriate | village | 4137 | 36.799141 | -5.140746 | Map | ||||
| Arrigorriaga | village | 12374 | 43.206593 | -2.887354 | Map | ||||
| Arriondas / Les Arriondes | village | 2611 | 43.389217 | -5.184871 | Map | ||||
| Arróniz | village | 1134 | 42.588825 | -2.091308 | Map | ||||
| Arroyo de la Encomienda | town | 12758 | 41.622128 | -4.781396 | Map | ||||
| Arroyo de la Luz | village | Extremadura | Cáceres | 6467 | 39.484035 | -6.584577 | Map | ||
| Arroyo de San Serván | village | Extremadura | Badajoz | 4274 | 38.856911 | -6.454731 | Map | ||
| Arroyo del Ojanco | village | 2492 | 38.321793 | -2.893453 | Map |