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We moved them to The National Archives website, to keep this website as responsive as possible.
Please note: all historical data is still on this website.
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The data sources and methodology used to produce mortality assumptions in the 2018-based national population projections.
The data sources and methodology used to produce migration assumptions in the 2018-based national population projections.
The variant projections, a range of scenarios with alternative demographic assumptions, used in the 2018-based national population projections.
A summary of how we set the demographic assumptions for the 2018-based national population projections.
The data sources and methodology used to produce fertility assumptions in the 2018-based national population projections.
High-level user guidance about the uses, methodology, assumptions and input data for household projections for England.
User guidance about uses, methodology, assumptions and input data for household projections for England.
An article providing answers to questions on the 2016-based subnational population projections.
Summarises methodological changes being implemented for the 2016-based household projections for England.
