Articles
Rankings, statistics and fun facts about French postal codes.
Postal code format
All about French postal code format: 5 digits, from 01000 to 98890.
Postal code map
Zoom in, zoom out, move the map, search by postal code or municipality name, and instantly see its location.
Postal code distribution
Graphical visualization of all 6,328 French postal codes: each pixel represents one existing postal code.
Data sources used
The four datasets used by moncodepostal.fr: HEXASMAL (La Poste), ADMIN EXPRESS (IGN), the National Address Database, and the geocoding API.
HEXASMAL: the official postal-code database
An overview of La Poste's HEXASMAL file: structure, delivery label, line 5 and sub-localities.
Top 20 postal codes covering the most municipalities
Ranking of the 20 French postal codes covering the most municipalities. The first one covers 46 municipalities.
Postal codes with the most addresses
Ranking of the 30 French postal codes with the most addresses in the Base Adresse Nationale. The first one has more than 34,000 addresses.
Municipalities with the most postal codes
List of French municipalities with the most distinct postal codes. The first one has 21.
Postal codes spanning 2 départements
List of French postal codes that cover 2 départements at once. How many would you guess?
Top 20 largest postal codes by area
Ranking of the 20 largest French postal codes by area. The first one exceeds 18,000 km².
