Dataset Direct Download Service (WFS): Urban unit according to INSEE in France

INSEE zoning comprising a commune or a group of municipalities which includes in its territory a built-up area of at least 2,000 inhabitants where no dwelling is separated from the nearest to more than 200 metres. In addition, each municipality concerned has more than half of its population in this built-up area.
The concept of urban unity is based on the continuity of the building and the number of inhabitants. An urban unit is a municipality or group of municipalities with a continuous building area (no cut-off of more than 200 metres between two buildings) with at least 2,000 inhabitants.

If the urban unit is located in a single municipality, it is referred to as an isolated city. If the urban unit extends over several municipalities, and each of these municipalities concentrates more than half of its population in the continuous built-up area, it is referred to as a multi-communal agglomeration.
Code “size of the urban unit” (based on the municipal population in the 2007 census for UU 2010):
0-Rural
1-Urban units from 2 000 to 4 999 inhabitants
2-Urban units from 5,000 to 9,999 inhabitants
3-Urban units from 10,000 to 19,999 inhabitants
4-Urban units from 20,000 to 49,999 inhabitants
5-Urban units from 50,000 to 99,999 inhabitants
6-Urban units from 100,000 to 199 999 inhabitants
7-Urban units from 200 000 to 1,999 999 inhabitants
8-Agglomeration of Paris

Code “Urban unit type”
0-Unit of rural municipalities of the department
1-Single city or single-community urban unit
2-Intra-departmental agglomeration
3-Inter-departmental agglomeration
4-Interregional agglomeration
5-International agglomeration

法国国家统计与经济研究所（INSEE）的区划单元由单个市镇或多个市镇组成，其辖区内包含至少2000居民的建成区，且区内任意住宅与其最近住宅的间距不超过200米。此外，相关市镇的总人口中，有超过一半居住在该建成区内。

城市单元（urban unit）的定义基于建筑连片性与居住人口规模。城市单元指单个或多个市镇辖区内，建筑连片（任意两栋建筑的间隔不超过200米）且居住人口至少2000的区域。

若城市单元仅涵盖单个市镇，则称之为“独立城镇”；若城市单元跨越多个市镇，且每个相关市镇的人口中超过一半都集中在该连片建成区内，则称之为“多市镇集聚区”。

城市单元规模编码（基于2010版城市单元对应的2007年市镇人口普查数据）：
0-乡村型
1-人口2000至4999的城市单元
2-人口5000至9999的城市单元
3-人口10000至19999的城市单元
4-人口20000至49999的城市单元
5-人口50000至99999的城市单元
6-人口100000至199999的城市单元
7-人口200000至1999999的城市单元
8-巴黎集聚区

城市单元类型编码：
0-省域乡村市镇单元
1-独立城镇或单市镇城市单元
2-省域内集聚区
3-跨省集聚区
4-跨大区集聚区
5-跨国集聚区