Guinea-Bissau Administrative Divisions

Name: Guinea-Bissau Administrative Divisions Dataset
Creator: GeoPostcodes
License: https://www.geopostcodes.com/pricing/

What is the hierarchy of administrative divisions in Guinea-Bissau?

Guinea-Bissau operates on a 3‑level system starting with 4 autonomous sectors, then regions, and sector as the smallest administrative units.

Here’s a breakdown of the hierarchy:

1. Autonomous sectors: Guinea-Bissau is divided into 4 autonomous sectors.

2. Regions: Autonomous sectors are subdivided into regions.

3. Sector: These are the smallest administrative units, often found within regions.

List of Guinea-Bissau'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
GW	Guinea-Bissau	Bissau (Autonomous sector)	This level doesn’t exist for this country.	1 Sector	This level doesn’t exist for this country.
GW	Guinea-Bissau	Leste (Province)	2 Regions	11 Sectors	This level doesn’t exist for this country.
GW	Guinea-Bissau	Norte (Province)	3 Regions	14 Sectors	This level doesn’t exist for this country.
GW	Guinea-Bissau	Sul (Province)	3 Regions	13 Sectors	This level doesn’t exist for this country.

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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Our location dataset for Guinea-Bissau

Explore our comprehensive collection of Guinea-Bissau ZIP code and administrative data products, designed to meet all your mapping and location intelligence needs.

Guinea-Bissau ZIP Codes

Some countries do not use ZIP or postal codes, and Guinea-Bissau is one of them. Instead of a national postal code system, locations are identified using cities, localities, and administrative divisions. The database reflects this structure by standardizing these place-based identifiers into a unified global schema, ensuring consistent validation and reliable cross-country comparisons even in the absence of ZIP codes.

Guinea-Bissau ZIP & Administrative boundaries

Guinea-Bissau 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.

Guinea-Bissau Address Format

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

Address validation - Guinea-Bissau address validation

Comprehensive Guinea-Bissau ZIP code, city, and address data to verify and correct existing addresses at input, post-entry, or in bulk.

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organizations worldwide with accurate, up-to-date geographic information.

Postal Code Database

Global dataset containing all administrative divisions, cities and ZIP codes.

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Key features

247 Countries
9,9M Coordinates
9,3M Postal Codes
400 Time zones
4M Cities and Towns
116K UNLOCODES

Specifications

Coverage: Global
Format: CSV, ASC, DAT, GML, GeoJSON, KML, Shapefile (SHP)

Boundary Data

A global dataset of polygons representing postal codes and administrative areas.

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Key features

247 Countries
Up to 6 levels
1,7M boundaries
High-precision
245K Admin areas
Visualization

Specifications

Coverage: Global
Format: GeoJSON, Geopackage, KML, Shapefile (SHP)

Population Database

Global population estimates at postal code and administrative level covering a span of 55 years: past, present, and future.

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Key features

247 Countries
243K Admin areas
55 year span
Yearly updates
645K ZIP codes

Specifications

Coverage: International
Format: CSV, ASC

Address Database

International dataset with all administrative areas, cities, streets, and relevant postal codes.

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Key features

81 Countries
299 languages
26,5M streets
400 time zones
9.3M ZIP codes
4M cities

Specifications

Coverage: International
Format: CSV, ASC, DAT, GML, KML, Shapefile (SHP), GeoJSON

Global Postal Code Coverage

247 countries and territories with standardized formatting and reliable geographic information.

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Updated: June 1, 2026

Frequently Asked Questions

What are the administrative divisions of Guinea-Bissau?

Guinea-Bissau is divided into 3 provinces and 1 autonomous sector (Sector autónomo), which form the top-level administrative units. These are subdivided into 8 regions (Regiões). The smallest administrative level consists of 39 sectors (Setores). Major provinces include Bissau, Leste, and Norte.

How many administrative levels does Guinea-Bissau have?

Guinea-Bissau has 3 administrative levels. Level 1: 3 provinces and 1 autonomous sector (Sector autónomo). Level 2: 8 regions (Regiões). Level 3: 39 sectors (Setores).

How is Guinea-Bissau organized into provinces?

Guinea-Bissau operates on a 3‑level system starting with 4 autonomous sectors, then regions, and sector as the smallest administrative units. Note that Bissau do not have sub-divisions at the next level.

What is the difference between provinces and autonomous sector in Guinea-Bissau?

In Guinea-Bissau, provinces and autonomous sector both sit at administrative level 1 but serve different functions. Provinces — there are 3 — typically group multiple smaller municipalities under a shared administration. Autonomous sector (sector autónomo) — there is 1 — is a larger city or urban area that handles its own administration independently.

How often do administrative boundaries change in Guinea-Bissau?

Administrative boundaries in Guinea-Bissau change as governments reorganize regions, merge municipalities, or create new administrative units to reflect population shifts and political decisions. Changes most commonly affect the sectors level, where Guinea-Bissau currently has 39 units. Businesses that rely on Bissau-Guinean administrative data should use a regularly updated reference dataset to avoid mismatches in geocoding, tax jurisdiction mapping, and compliance reporting.