About UK censuses

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The census in all UK countries has been undertaken in a consistent manner. However, there are differences in some of the questions asked, processing, and detailed methodology.

Before using census data you should ensure that the census covers the right topics for you. Questions and definitions often change between censuses. You can access the census forms, definitions, and the census agencies websites for further information.

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Essential maintenance to our systems is planned for the morning of 19 December 2017. Users are likely to experience disruption to online services during this period.

The UK Data Service offices are closed fromĀ 12.30 GMT Friday 22 December 2017 and will re-open on Tuesday 2 January 2018. Online services will run unattended during this period. Season's Greetings to all our users.

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