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Scope: Whole of France.

Guide: The concept of an urban unit is based on the continuity of the built environment and the number of inhabitants. Urban units in metropolitan France and the overseas territories are defined as follows: a municipality or a group of municipalities comprising a continuous built-up area (with no gap of more than 200 meters between two buildings) that has at least 2,000 inhabitants (INSEE definition). Municipalities that do not belong to an urban unit are referred as rural municipalities.

Source: Insee, 2022 census.

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