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API Access

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Dataset Files

Each file has a stable URL (r-link) that you can use directly in scripts, apps, or AI agents. These URLs are permanent and safe to hardcode.

/logistics/postal-codes-ch/

├ .licensing-notes.md

https://datahub.io/logistics/postal-codes-ch/_r/-/.licensing-notes.md

├ .migration-notes.md

https://datahub.io/logistics/postal-codes-ch/_r/-/.migration-notes.md

├ ATTRIBUTION.txt

https://datahub.io/logistics/postal-codes-ch/_r/-/ATTRIBUTION.txt

├ README.md

https://datahub.io/logistics/postal-codes-ch/_r/-/README.md

└ datapackage.yaml

https://datahub.io/logistics/postal-codes-ch/_r/-/datapackage.yaml

Key Files

Start with these files — they give you everything you need to understand and access the dataset.

datapackage.yaml— metadata & schema

https://datahub.io/logistics/postal-codes-ch/_r/-/datapackage.yaml

README.md— documentation

https://datahub.io/logistics/postal-codes-ch/_r/-/README.md

Typical Usage

1. Fetch datapackage.yaml to inspect schema and resources
2. Download data resources listed in datapackage.yaml
3. Read README.md for full context

Data Files

postal-codes-ch-sample

Field	Type	Description	Constraints	Title
country_code	string	ISO 3166-1 alpha-2 -- always CH		Country Code
postal_code	string	Swiss 4-digit postal code (PLZ)	{ "pattern": "^\\d{4}$" }	Postal Code
place_name	string	Locality name. Large-account subdivisions appear as distinct rows (e.g. 'Lausanne 25'), as do PO-box/corporate codes (e.g. 'Zofingen PF')		Place Name
admin_name1	string	Canton -- official ISO 3166-2:CH subdivision name (all 26 covered)		Administrative Name 1
admin_code1	string	ISO 3166-2:CH canton code, e.g. CH-ZH		Administrative Code 1
admin_name2	string	District (Bezirk) -- empty where the register is ambiguous after a municipality merger		Administrative Name 2
admin_code2	string	Official BFS district number (Bezirksnummer)		Administrative Code 2
admin_name3	string	Municipality (Gemeinde)		Administrative Name 3
admin_code3	string	Official BFS municipality number (BFS-Nr)		Administrative Code 3
latitude	number	WGS84 latitude		Latitude
longitude	number	WGS84 longitude		Longitude
accuracy	string	Not populated -- the official source carries no coordinate-accuracy grade		Accuracy
alternative_city_name	string	Not populated in this release		Alternative City Name
code_type	string	Extra field, beyond the core 13. 'locality' = official swisstopo locality row; 'po_box_or_large_account' = PO-box/corporate/branch code that the official locality register does not list	{ "enum": [ "locality", "po_box_or_large_account" ] }	Code Type
address_share_pct	string	Extra field, beyond the core 13. For localities split across municipalities, this municipality's percentage share of the locality's addresses. Empty for po_box_or_large_account rows		Address Share Percent

Download

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About

Last updated: 6 October 2026
Total rows: 100
Format: CSV
File size: 12.7 kB
Sources: swisstopo -- Amtliches Ortschaftenverzeichnis mit Postleitzahl und Perimeter; GeoNames postal code database -- Switzerland
License: opendata.swiss terms of use, open tier (commercial use permitted, attribution recommended)

About this dataset

Postal Codes Dataset for Switzerland (CH)

This dataset lists the four-digit postal codes (PLZ) of Switzerland with locality names, cantons, districts (Bezirke), municipalities (Gemeinden) and WGS84 coordinates, covering every canton. It also includes PO-box, large-account and post-office branch codes that are not localities.

Column definitions, row count, size and last-updated date are in datapackage.yaml.

Data Sources

Postal codes, localities, municipalities, cantons, coordinates and address shares: © swisstopo, Amtliches Ortschaftenverzeichnis mit Postleitzahl und Perimeter, opendata.swiss terms of use, open tier (commercial use permitted, attribution recommended).
District (Bezirk) tier and the PO-box, large-account and branch codes missing from the official locality register: © GeoNames, postal code export for Switzerland, CC BY 4.0.

Changes made to the source data: canton codes written as ISO 3166-2:CH (CH- plus the canton abbreviation) with the ISO canton names, Liechtenstein localities removed, districts joined from GeoNames on the BFS municipality number, GeoNames codes absent from the official register added with code_type set to po_box_or_large_account, address shares written as plain numbers.

Not endorsed by, or affiliated with, swisstopo or GeoNames.

Known limitations

A locality that straddles a municipal boundary has one row per municipality, with that municipality's share of the locality's addresses in address_share_pct. Rows are not collapsed to one per postal code.
The district is left empty for municipalities whose district is ambiguous in the source after a municipal merger.
accuracy and alternative_city_name are empty on every row, and address_share_pct is empty for po_box_or_large_account rows.
Localities of Liechtenstein that share the Swiss postal range (9485-9499) are excluded.

Usage

The dataset files are available in CSV format and can be accessed and downloaded using the links provided in datapackage.yaml.

For other inquiries, contact datahub@datopian.com