This dataset provides 2011 estimates that classify households in United Kingdom by the diversity in ethnic group of household members in different relationships. The estimates are as at census day, 27 March 2011.

The information helps to provide a better understanding of communities and is used for the government-wide race equality and community cohesion strategy, which seeks to improve race equality outcomes in areas such as housing, education, health and criminal justice for all groups across society.

In Northern Ireland this table is numbered QS204NI.

The determination of multiple ethnic groups in households is specific to each country and is based on each country's classification of ethnic group.

In order to protect against disclosure of personal information from the 2011 Census, there has been swapping of records in the Census database between different geographic areas, and so some counts will be affected. In the main, the greatest effects will be at the lowest geographies, since the record swapping is targeted towards those households with unusual characteristics in small areas.

More details on the ONS Census disclosure control strategy may be found on the Statistical Disclosure Control page on the ONS web site.