UK Census Dates and the 100 Year Law
National Census records are taken every 10 years since 1801 .
UK censuses are covered by the "100 year privacy" rule, this means that the
details are not available to the public until 100 years after the census was taken.
The latest available census is the 1911 census. The next one, the 1921 census
will not be available for public viewing until January 2022.