This table provides information that classifies by sex for the usual resident population of United Kingdom as at census day, 27 March 2011.

The 2011 usual resident population is also classified by the number of residents living in households and those living in communal establishments.

Additional information provided includes the area and population density for each area, and the number of students and schoolchildren who would reside in each area if they were not living away from their family home during term-time.

'All full-time students and schoolchildren aged 4+ years living away from home during term time' figures for Northern Ireland sourced from table QS106NI.

Area and Population Density figures for Noerthern Ireland sourced from table QS102NI.

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.