What are the key differences between the methodology used in Wales and England?
Household projections for both England and Wales used the same methodology up until the 2003-based household projections. For the 2006-based household projections the key differences are: • Household projections for England continue to be based on headship rates whilst for Wales they are now based on membership rates. • Household projections for England continue to use household types based on marital status whereas for Wales household types are now based on household size and the presence of children. • For England projected household numbers by local authority add up to the projected numbers at a national level, whereas for Wales this is not the case. This is because separate local and national household projections have been produced using the available local authority population projection data from the Welsh Assembly Government and national population projection data from the Office for National Statistics.
