Corsica postal codes — France

Corsica is a region of France made up of an island in the Mediterranean Sea, south-east of the mainland. Its regional capital is Ajaccio.

Beyond Ajaccio, the region's main towns include Corte, Sartene, Calvi and Bastia — each the chef-lieu of an arrondissement, surrounded by the communes whose postal codes are listed above.

Administrative structure

France is organised into three administrative levels: the région, the département, and the commune. Corsica is a région; below it are the départements listed here, each divided into communes:

• 2A South Corsica
• 2B Upper Corsica

How postal codes work in Corsica

French postal codes are five digits long, written as a single block with no space (for example, 20167). The code reads from left to right, moving from the département down to the local delivery area.

The first two digits identify the département. In Corsica, every postal code begins with one of these two-digit prefixes: 20.

The remaining three digits narrow the code down within the département. They identify the delivering post office or commune, and in larger towns a specific delivery zone; they do not reproduce the commune's official INSEE code, even where the two look similar.

Corsica is a special case: its two départements, Corse-du-Sud (2A) and Haute-Corse (2B), share the postal-code prefix 20, so Corsican codes begin with 20 even though the département codes are written 2A and 2B.

Some codes are reserved for CEDEX (Courrier d'Entreprise à Distribution EXceptionnelle) service. A CEDEX code is assigned to a business, administration, or other recipient that receives high volumes of mail, and it routes post through a dedicated handling arrangement rather than a standard geographic round. CEDEX appears after the town name in the address, sometimes with a number identifying the specific account.

Addressing format

A correctly formatted address in Corsica places the postal code before the town name, on the same line, with the town name in capital letters. For example:

Recipient name
Street and number
20167 AJACCIO

The postal code and town share the final line, postal code first, town in uppercase. A CEDEX designation, where it applies, is added after the town name.