Postal codes

This dataset makes the link between postal codes and addresses.

It is built from the Official Geographical Code of INSEE and the FIMOCT of DGFiP.

Different types of links

A postal code may be associated with several municipalities (e.g. 54490 is shared by 7 municipalities), and one municipality may have several postal codes (e.g. Metz has 3 different postal codes).

Where a municipality has more than one postal code, the dataset lists all the routes covered by each postal code, and possibly the parity of the numbers and the sections. This level of detail is only present in the ‘full’ file (experimental).

Update of the Official Geographical Code

The Official Geographical Code is updated annually in April. As this dataset is built with the latest version available, it is possible that the newest municipalities are not yet in it.

Current edition of the GOC: 2019

List of fields

• ‘Postal Code’: postal code
• ‘libelleAroute’: routing wording (in capital letters not accentuated to the postal standard)
• ‘common code’: INSEE code of the municipality
• ‘common name’: name of the municipality

List of additional fields (full)

All of the following fields are optional.

• ‘track code’: code FANTOIR of the track concerned
• ‘old common code’: INSEE code of the former municipality to which the ‘track code’ is attached
• ‘Parite code’: parity code (‘0’ for peer numbers, ‘1’ for odd numbers)
• ‘borneInferior’: smaller number of the section
• ‘borneSuperieure’: largest number of the section

Geographical coverage

This dataset covers metropolitan France as well as overseas departments and regions.

Differences with La Poste dataset

• This dataset (for its ‘full’ version) contains the list of lanes and sections of lanes concerned by a postal code where a municipality has multiple postal codes. This information does not exist in the La Poste dataset.