People with a migrant background

Definition:
Traditionally, immigration to Germany is covered by nationality. In the meantime, however, this criterion is too short. For example, emigrants receive German citizenship on entry, but also growing parts of the formerly foreign population have now accepted German citizenship, so that the delimitation by nationality no longer applies. As of the 2005 microcensus, it is possible to map a person’s migration status more comprehensively. In addition to the nationality and immigration status of the person himself, the corresponding information from his parents is collected.
According to the definition of the migration background according to § 4(1) of the Participation and Integration Act of 14.2.2012 (GV.NRW.S. 97), people with a migration background are
—Persons of foreign nationality, or
persons born abroad and immigrated after 1949, or
—Persons where at least one parent has emigrated.
Persons whose assignment to the population with a migrant background results solely on the basis of characteristics of a parent not living in the household can only be identified as persons with a migrant background within the framework of the microcensus every four years. Thus, in the corresponding years, the evidence of the population with a migrant background is increased compared to the rest of the years.

Note:
Further data on the population with a migrant background in North Rhine-Westphalia can be found on the website of the Integration Report of the Ministry of Labour, Integration and Social Affairs of the State of North Rhine-Westphalia
Note on the revision of the results for 2011 and 2012:
The extrapolation framework for the microcensus has been changed: Up to the 2010 survey year, the extrapolation is based on the updated results of the 1987 census, and from 2011 on the updated results of census 2011. With the update for the 2013 survey year, the results for 2011 and 2012 were revised accordingly.

Data source:
It.NRW, Microcensus