This data informs the contours of the Iris in the municipality of Montpellier. This data is extracted from the file available from the IGN website (http://professionnels.ign.fr/contoursiris#tab-3).
Co-edition INSEE and IGN, Contours...Iris is a digitized fund of Iris islets defined by INSEE for census purposes on all municipalities with more than 10,000 inhabitants and most municipalities with 5,000 to 10,000 inhabitants.
Contours...Iris 2014 edition is made with the results of the 2011 population census, INSEE 2014 data and the 2014 edition of the GEOFLA product.