Dataset Direct Download Service (WFS): Infracommunal demography in IRIS of the communes 2007 according to INSEE in the Somme

Municipalities with at least 10 000 inhabitants and most municipalities with 5,000 to 10 000 inhabitants are divided into IRIS. This division, which is the basis for the dissemination of sub-communal statistics, constitutes a partition of the territory of these communes into “neighbourhoods” with a population of about 2,000 inhabitants.
By extension, in order to cover the whole territory, each of the municipalities not divided into IRIS is treated as an IRIS.

This division was drawn up in partnership with local partners, in particular the municipalities, in accordance with precise rules defined in consultation with the Commission Nationale Informatique et Libertés (CNIL). It is constructed on the basis of geographical and statistical criteria and, as far as possible, each IRIS must be homogeneous in terms of habitat. The IRIS offer the most developed tool to date to describe the internal structure of nearly 1,900 municipalities with at least 5,000 inhabitants.

人口不少于10000的市镇，以及绝大多数人口处于5000至10000区间的市镇，均被划分为IRIS。该划分是市镇层级以下统计数据发布的基础，将上述市镇的管辖区域划分为人口规模约2000人的“街区”。
为实现全域覆盖，未被划分为IRIS的市镇将被视作一个IRIS。
该划分由本地合作伙伴（尤其是各相关市镇）协同制定，遵循与法国国家信息与自由委员会（Commission Nationale Informatique et Libertés，CNIL）磋商确定的严格规范。其构建以地理与统计标准为依据，且应尽可能保证每个IRIS在居住环境方面具备同质性。
IRIS是迄今用于描述近1900个人口不少于5000的市镇内部结构的最成熟工具。