You asked

How many mixed race people currently live in the UK?

How many mixed race people currently live in London?

What is the percentage of mixed race people in the UK in the most recent census?

What is the percentage of mixed race people in London in the most recent census?

What will be the estimated percentage of mixed race people in the UK in the next census?

What will be the estimated percentage of mixed race people in London in the next census?

We said

You have made a Freedom of Information Request for information on ethnicity for the United Kingdom and London.

The Office for National Statistics is responsible for the Census in England and Wales and as a result we do not hold all of the information required to meet your specified requirements. Statistics for Scotland and Northern Ireland may be obtained by contacting National Records of Scotland (http://nationalrecordsofscotland.gov.uk/statistics-and-data/census) and the Northern Ireland Statistics and Research Agency (http://www.nisra.gov.uk/Census.html).

We do not produce population estimates or projections by ethnicity, however, information from the most recent census, carried out in 2011, is presented in the attached table: Population by Ethnic Group for England and Wales and London. This provides breakdowns of the number and percentage of persons for each of the main ethnic groups, including mixed/multiple ethnic groups, for England and Wales as well as London. In the case of the latter the figures relate to the former Government Office Region of London made up of all 33 London boroughs.

Guidance on specific concepts and definitions used in the table is set out below:

Usual Resident - the main population base for outputs from the 2011 Census is the usual resident population on census day (27th March 2011). For 2011 Census purposes, a usual resident is anyone who, on census day, was in the UK and had stayed or intended to stay in the UK for a period of 12 months or more, or had a permanent UK address and was outside the UK and intended to be outside the UK for less than 12 months.

Ethnic Group - classifies people according to their own perceived ethnic group or cultural background. The table includes both tick box and write-in responses.

Further information on census definitions, variables and classifications can be accessed from the attached link:

http://www.ons.gov.uk/ons/guide-method/census/2011/census-data/2011-census-user-guide/glossary/index.html

If you wish to obtain additional information from the 2011 Census for England and Wales this may be accessed from the Nomis website (https://www.nomisweb.co.uk) or by contacting the Census Customer Services Team at census.customerservices@ons.gov.uk. It is not necessary to make a Freedom of Information request.