Spain Administrative Divisions

Spain is divided into 17 autonomous communities (Comunidades Autónomas) and 2 autonomous cities (Ciudades Autónomas), which form the top-level administrative units. These are subdivided into 52 provinces (Provincias). At the next level, there are 477 regions (Comarcas). The smallest administrative level consists of 8,131 municipalities (Municipios). Major autonomous communities include Andalusia, Aragon, and Balearic Islands.

Spain has 4 administrative levels. Level 1: 17 autonomous communities (Comunidades Autónomas) and 2 autonomous cities (Ciudades Autónomas). Level 2: 52 provinces (Provincias). Level 3: 477 regions (Comarcas). Level 4: 8,131 municipalities (Municipios).

Spain operates on a 4‑level system starting with 19 autonomous communities, then provinces, after that regions, and municipalities as the smallest administrative units.

In Spain, autonomous communities and autonomous cities both sit at administrative level 1 but serve different functions. Autonomous communities (comunidades autónomas) — there are 17 — typically group multiple smaller municipalities under a shared administration. Autonomous cities (ciudades autónomas) — there are 2 — are a larger city or urban area that handle its own administration independently.

Spanish administrative divisions have specific local names at each level. In Spanish, autonomous communities are called Comunidades Autónomas; autonomous cities are called Ciudades Autónomas; provinces are called Provincias; regions are called Comarcas; municipalities are called Municipios. These local-language terms appear in official documents, legal records, and government databases, so matching them correctly is important for data integration and compliance.

Administrative boundaries in Spain change as governments reorganize regions, merge municipalities, or create new administrative units to reflect population shifts and political decisions. Changes most commonly affect the municipalities level, where Spain currently has 8,131 units. Businesses that rely on Spanish administrative data should use a regularly updated reference dataset to avoid mismatches in geocoding, tax jurisdiction mapping, and compliance reporting.