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World Postal Codes > Worldwide Administrative Divisions > Europe Administrative Divisions > Finland Administrative Divisions

Finland Administrative Divisions

What is the hierarchy of administrative divisions in Finland?

Finland operates on a 4‑level system starting with 6 regional state agencies, then regions, after that sub-regions, and municipalities as the smallest administrative units.

Here’s a breakdown of the hierarchy:

1. Regional state agencies: Finland is divided into 6 regional state agencies.

2. Regions: Regional state agencies are subdivided into regions.

3. Sub-regions: Regions are further subdivided into sub-regions.

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

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

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

isocountryadmin level 1admin level 2admin level 3admin level 4
FIFinlandEastern Finland (Regional state agency)3 Regions11 Sub-regions43 Municipalities
FIFinlandLapland (Regional state agency)1 Region6 Sub-regions21 Municipalities
FIFinlandNorthern Finland (Regional state agency)2 Regions9 Sub-regions38 Municipalities
FIFinlandSouthern Finland (Regional state agency)5 Regions12 Sub-regions62 Municipalities
FIFinlandSouthwest Finland (Regional state agency)2 Regions8 Sub-regions44 Municipalities
FIFinlandWestern and Inner Finland (Regional state agency)5 Regions21 Sub-regions85 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
seamlessly into your system or platform of choice without needing to become an expert in
each country’s unique administrative hierarchy.

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Updated: June 10, 2026

Frequently Asked Questions

Finland is divided into 6 regional state agencies (Aluehallintovirasto) and 1 autonomous region (Ahvenanmaan maakunta), which form the top-level administrative units. These are subdivided into 18 regions (Maakunnat). At the next level, there are 67 sub-regions (Seutukunnat). The smallest administrative level consists of 294 municipalities (Kunta). Major regional state agencies include Eastern Finland, Lapland, and Northern Finland.

Finland has 4 administrative levels. Level 1: 6 regional state agencies (Aluehallintovirasto) and 1 autonomous region (Ahvenanmaan maakunta). Level 2: 18 regions (Maakunnat). Level 3: 67 sub-regions (Seutukunnat). Level 4: 294 municipalities (Kunta).

Finland operates on a 4‑level system starting with 6 regional state agencies, then regions, after that sub-regions, and municipalities as the smallest administrative units.

In Finland, regional state agencies and autonomous region both sit at administrative level 1 but serve different functions. Regional state agencies (aluehallintovirasto) — there are 6 — typically group multiple smaller municipalities under a shared administration. Autonomous region (ahvenanmaan maakunta) — there is 1 — is a larger city or urban area that handles its own administration independently.

Finnish administrative divisions have specific local names at each level. In Finnish and Swedish, regional state agencies are called Aluehallintovirasto; autonomous region are called Ahvenanmaan maakunta; regions are called Maakunnat; sub-regions are called Seutukunnat; municipalities are called Kunta. 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 Finland 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 Finland currently has 294 units. Businesses that rely on Finnish administrative data should use a regularly updated reference dataset to avoid mismatches in geocoding, tax jurisdiction mapping, and compliance reporting.