Spain Administrative Divisions

What is the hierarchy of administrative divisions in Spain?

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

Here’s a breakdown of the hierarchy:

1. Autonomous Communities: Spain is divided into 19 autonomous communities.

2. Provinces: Autonomous Communities are subdivided into provinces.

3. Regions: Provinces are further subdivided into regions.

4. Municipalities: These are the smallest administrative units, often found within regions.

List of Spain's administrative divisions with their counts and names

These are the summarized administrative divisions. The full dataset is available in the Download Center.

iso	country	admin level 1	admin level 2	admin level 3	admin level 4
ES	Spain	Andalusia (Autonomous Community)	8 Provinces	65 Regions	786 Municipalities
ES	Spain	Aragon (Autonomous Community)	3 Provinces	37 Regions	734 Municipalities
ES	Spain	Balearic Islands (Autonomous Community)	1 Province	10 Regions	67 Municipalities
ES	Spain	Basque Country (Autonomous Community)	3 Provinces	21 Regions	256 Municipalities
ES	Spain	Canary Islands (Autonomous Community)	2 Provinces	8 Regions	88 Municipalities
ES	Spain	Cantabria (Autonomous Community)	1 Province	10 Regions	103 Municipalities
ES	Spain	Castille and Leon (Autonomous Community)	9 Provinces	72 Regions	2298 Municipalities
ES	Spain	Castille-La Mancha (Autonomous Community)	5 Provinces	35 Regions	921 Municipalities
ES	Spain	Catalonia (Autonomous Community)	4 Provinces	46 Regions	948 Municipalities
ES	Spain	Ceuta (Autonomous City)	1 Province	This level doesn’t exist for this country.	1 Municipality
ES	Spain	Extremadura (Autonomous Community)	2 Provinces	27 Regions	388 Municipalities
ES	Spain	Galicia (Autonomous Community)	4 Provinces	53 Regions	313 Municipalities
ES	Spain	La Rioja (Autonomous Community)	1 Province	12 Regions	175 Municipalities
ES	Spain	Madrid (Autonomous Community)	1 Province	6 Regions	181 Municipalities
ES	Spain	Melilla (Autonomous City)	1 Province	This level doesn’t exist for this country.	1 Municipality
ES	Spain	Murcia (Autonomous Community)	1 Province	12 Regions	45 Municipalities
ES	Spain	Navarre (Autonomous Community)	1 Province	17 Regions	288 Municipalities
ES	Spain	Principality of Asturias (Autonomous Community)	1 Province	9 Regions	78 Municipalities
ES	Spain	Valencian Community (Autonomous Community)	3 Provinces	35 Regions	542 Municipalities

Why is building an Administrative Divisions Database complex?

The complexity arises from inconsistent global standards, frequent boundary changes, non-uniform naming conventions (e.g., “suburb” in Australia vs. “county” in the US), and variations in administrative levels across countries. Integrating and harmonizing data from multiple sources requires advanced normalization, versioning, and geospatial validation techniques.

How does GeoPostcodes solve the problem for you?

Our standardized database overcomes the complexity of different administrative division
systems worldwide. Our database follows a unified structure that you can integrate
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each country’s unique administrative hierarchy.

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Our location dataset for Spain

Spain ZIP Codes

Spain utilizes a five-digit numeric postal code system, locally known as Código postal, with a format of 99999. The first two digits of the Código postal identify the province, and the last three digits specify the postal distribution unit. This system covers the mainland, islands, and autonomous cities.

According to the GeoPostcodes world postal code database, Spain has 10,818 postal codes, 8,681 regions, and 73,291 towns. Similar to US ZIP codes, Spain’s postal codes are entirely numeric, but they differ in length as US ZIP codes are five-digit numeric with an optional four-digit extension, whereas Spanish postal codes are strictly five-digit numeric.

Spain ZIP & Administrative boundaries

Spain administrative landscape often follows inconsistent regional models and irregular public sources, making it difficult to maintain reliable boundaries. Our standardized postal and administrative boundary data resolves these gaps to ensure complete, coherent geographic coverage.

Spain Address Format

Address conventions differ by country, leading to frequent validation errors and incomplete entries. Our dataset applies Spain correct address format to ensure clean inputs, smoother validation, and reduced delivery mistakes.