[DREAL OCCITANIA] Population data in the municipality in Occitania

The census is now based on an annual collection of information, covering all communal territories successively over a five-year period. Municipalities with less than 10,000 inhabitants carry out a census survey covering the entire population, at the rate of one in five municipalities each year. Municipalities with 10,000 inhabitants or more carry out an annual sample survey of a sample of addresses representing 8 % of their dwellings. By combining five surveys, all inhabitants of municipalities with less than 10,000 inhabitants and about 40 % of the population of municipalities with 10 000 inhabitants or more are taken into account. The information thus collected is reduced to the same date for all municipalities in order to ensure equal treatment between them. This reference date is set at 1 January of the median year of the five years of survey to obtain a better robustness of the data. The first five census surveys were conducted from 2004 to 2008. Thus, from the end of 2008, it was possible to develop and disseminate the full results of the 2006 vintage census, which is in the middle of the period. Since then and annually, the results of the census have been produced from the five most recent annual surveys: abandoning information from the oldest survey and taking into account the new survey.