Census 2021 Migrant Indicator - Birmingham Wards

The migration indicator classifies people based on the difference between their current address and their address one year ago. It provides an indicator of the movement of people within the UK and from outside the UK, in the one-year period before the census.CoverageThis dataset is focused on the data for Birmingham at Ward level. Also available at LSOA, MSOA and Constituency levels.About the 2021 CensusThe Census takes place every 10 years and gives us a picture of all the people and households in England and Wales.Protecting personal dataThe ONS sometimes need to make changes to data if it is possible to identify individuals. This is known as statistical disclosure control. In Census 2021, they:Swapped records (targeted record swapping), for example, if a household was likely to be identified in datasets because it has unusual characteristics, they swapped the record with a similar one from a nearby small area. Very unusual households could be swapped with one in a nearby local authority.Added small changes to some counts (cell key perturbation), for example, we might change a count of four to a three or a five. This might make small differences between tables depending on how the data are broken down when they applied perturbation.For more geographies, aggregations or topics see the link in the Reference below. Or, to create a custom dataset with multiple variables use the ONS Create a custom dataset tool.Population valueThe value column represents All usual residents.The percentage shown is the value as a percentage of All usual residents within the given geography.

迁徙指标类别依据个人当前住址与一年前住址之间的差异对人群进行分类，该指标反映了在普查前一年内英国境内以及来自英国以外的人口流动情况。数据集的覆盖范围聚焦于伯明翰市在街区层面的数据，同时亦提供在地方选区、中等选区以及选区层面的数据。关于2021年人口普查，人口普查每十年进行一次，旨在呈现英格兰和威尔士所有人口及家庭的全貌。在保护个人数据方面，英国国家统计局（ONS）在可能识别个人时，有时需要对数据进行调整，这被称为统计披露控制。在2021年人口普查中，他们采取了以下措施：交换记录（针对性记录交换），例如，若一个家庭因其独特特征可能被数据集识别，他们会将该家庭的记录与附近小区域内相似家庭的记录进行交换。非常不寻常的家庭可能被与附近地方当局的一个家庭交换。对某些计数进行了微小调整（单元格键扰动），例如，将四个计数更改为三个或五个。这可能会根据数据在应用扰动时的拆分方式，在不同表格之间产生微小差异。关于更多地理区域、汇总或主题的详细信息，请参阅下方的参考资料链接。或者，要创建包含多个变量的自定义数据集，请使用ONS的自定义数据集创建工具。人口值列表示所有常住居民的价值。显示的百分比是该值占给定地理区域内所有常住居民总数的百分比。