EAR : The Annual Population Census survey - 2023
Data description
The data collected relate to the characteristics of:
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of the individual: sex, age, marital status, place of birth, nationality, place of study, diplomas, previous place of residence (one year before), job, social category, economic activity sector, place of work, etc.;
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the household: composition, size, family ties, number of cars, etc.;
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of the dwelling: type, year of completion, size, type of occupation, HLM, heating, bathroom, sewage disposal, year of move-in, parking,etc.
Sector coverage
Jobs are mainly distributed according to:
- the sector of activity of the NAF, revision 2 in 5, 17 or 38 items;
- the socio-professional category of the PCS 2003 in 6 or 29 items;
- working hours, status (employee or self-employed), employment conditions (trainee, fixed-term contract, permanent contract, etc.).
Statistical unit
Dwelling, the household, the family, the individual.
Statistical population
Persons residing in metropolitan France, in the overseas departments except Mayotte, and in the overseas collectivities of Saint-Barthélemy and Saint-Martin.
Reference area
France hors Mayotte
Year N
The data from the ACS of year N are delivered to internal users in the geography of collection, i.e. on 01/01/N-1.
Data compilation
The first phase of the statistical analysis, known as the main phase, deals with all the questionnaires collected. It deals with all the information that can be easily coded after the questionnaires have been entered.
The second phase of the exploitation, known as complementary, is intended to produce the variables whose elaboration is more complex and which describe:
- The family structure of the households: precise determination of the reference person of the household, identification, if necessary, of families within the household and composition of these families;
- The sectors of activity in which the jobs are carried out;
- The occupation and socio-professional category of the persons.
Since the 2014 survey, the supplementary analysis has covered one-fifth of households in municipalities with fewer than 10,000 inhabitants, and all the forms collected from households (i.e. around 40 %) in municipalities with
10,000 inhabitants or more. For all communes, the complementary analysis also covers one individual in 5 communities.
The calibration margins of the 2023 ACS are based on the 2020 population census and the demographic file of dwellings and individuals for the year 2022.
- Processing population census data (fr)
- Main and supplementary farms (Thematic sheet, June 2024) (pdf, fr)
Sample size
In the 2023 ACS, 5.3 million dwellings and 9.6 million people were surveyed.
Data collection documents
A variable distinguishes the mode of response (paper or internet) chosen by the respondents.
The questionnaires (individual bulletin, individual bulletin for communities, housing sheets for metropolitan France and the overseas departments) as well as the explanatory notes are available on the site "the census and me" (site updated at each ACS).
- Census of Population - Explanatory notes (fr)
- Collection questionnaires for the 2023 annual census survey (7z, fr)
The methodology of the population census was renewed in 2004 and gave rise to an Insee Methods "Pour comprendre le recensement de la population" in 2005.
The documentation also includes sheets on the processing of data after the collection, available on insee.fr.
- Insee méthodes Special edition : To understand the population census (fr)
- Processing population census data (fr)
- Improving the accuracy of annual census surveys by mobilizing tax sources (fr)