List of arrondissements of France

Organization and identifying data

Every arrondissement is assigned an INSEE code by the national statistics institute; this numeric identifier helps link data across datasets and censuses. The usual columns in a published list include the INSEE code, the chef-lieu (capital) often referenced as the chief town, the most recent population totals, the land area in square kilometres, the calculated population density and the number of constituent communes. The administrative seat of an arrondissement is either the department's prefecture or, for other arrondissements, a subprefecture (prefecture / subprefecture).

History and development

Arrondissements were established as part of the modern French administrative framework in the early 19th century. Their boundaries and the number of arrondissements have evolved through reorganizations, suppressions and restorations carried out by national decrees. Changes typically respond to shifts in population, the need for administrative efficiency, or broader territorial reforms. Because of this evolution, published lists are periodically updated to reflect the current configuration used by administrations and statisticians.

Uses and examples

Arrondissements are used to coordinate state services below the departmental level: local branches of ministries, judicial administration, and statistical reporting often use arrondissement boundaries. They provide a helpful mid-level layer between departments and communes for planning and public policy. Typical published tables allow users to compare demographic density, identify the seat of administration and count how many communes fall within each arrondissement.

Distinctions and notable facts

It is important to distinguish departmental arrondissements from municipal arrondissements, which are subdivisions of large communes such as Paris, Lyon and Marseille and serve different municipal functions. Arrondissements can vary widely in area, population and number of communes: some are primarily urban and compact, others are large and rural. Lists of arrondissements are therefore essential reference tools for researchers, planners and citizens seeking consistent administrative and statistical information.

Further reading

• Official national lists and updates: arrondissements list
• Context on French administration: France overview
• Statistical identifiers and datasets: INSEE resources
• Terms and roles of seats: chief town, prefecture/subprefecture
• Common statistical columns explained: population density, communes