The municipalities of at least 10,000 inhabitants and most communes of 5,000 to 10,000 inhabitants are divided into IRIS. This division, the basic grid for the dissemination of infracommunal statistics, constitutes a partition of the territory of these municipalities into &quartiers" whose population is about 2 000 inhabitants.
By extension, in order to cover the whole territory, we equate to an IRIS each of the municipalities not cut into IRIS.
This division has been drawn up in partnership with the local interlocutors, in particular the municipalities, according to 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 from the point of view of habitat. The IRIS offer the most developed tool to date to describe the internal structure of nearly 1,900 communes of at least 5,000 inhabitants.
__Origin__
Location of reserves from the DREAL Centre-Val-de-Loire
__Partner organisations__
DDTM Somme
__Links annexes__
* [XML metadata view](http://ogc.geo-ide.developpement-durable.gouv.fr/csw/all-dataset?REQUEST=GetRecordById&SERVICE=CSW&VERSION=2.0.2&RESULTTYPE=results&elementSetName=full&TYPENAMES=gmd:MD_Metadata&OUTPUTSCHEMA=http://www.isotc211.org/2005/gmd&ID=fr-120066022-jdd-62baa7b3-a989-4c29-9149-aa2d40ac428f)
[See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/3bae24f957b0f58087ec94bcd254cb591aa89997)
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