variable (41 categories)

Migration (9 categories)

In England and Wales 'associated area' refers to Local Authority District for tables at Ward(Electoral Division in Wales); Parish (Community in Wales) or Output Area level. For all other geographical areas the 'associated area' is England and Wales.

Inflow is not an exact count of people moving into an area as it does not include people who had no usual address one year ago who did not live within the area.

Net migration within the UK (Inflow minus Outflow) subtracts the number of people who have moved out of the area, to elsewhere within the UK (Outflow) from the number of people who have moved into the area, from elsewhere within the UK (Inflow). It does not include people who have moved to or from outside the UK.

One year ago is one year before Census day (29 April 2001).

Outflow is not a count of all people moving out of the area as it does not include people who have moved outside the UK.

The term 'area' refers to the particular area level being shown in the table. So, in the case of a table for a ward, this will mean the term 'area' translates to the name of the ward.