This (parent) category is for municipalities (municipios) of Spain. Since there are many thousands of municipalities in Spain, articles on individual municipalities ought to be placed in the appropriate subcategory (arranged by provinces of Spain), rather than this parent category.
The country of Spain is administratively divided into seventeen autonomous communities (comunidades autónomas), and five enclaves of sovereignty (plazas de soberanía) on the African coast, which include the two autonomous cities (ciudades autónomas) of Ceuta and Melilla). These seventeen autonomous communities group together and preserve some fifty Provinces {provincias), which have an older historical formation. Within each autonomous community/province are numerous local government divisions, or municipalities, generally centered around a city, town, village or rural area.