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Uses of projections

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Answers to frequently asked questions about the uses of population projections

Why are the projections produced?

The main purpose of producing population projections is to provide an estimate of the future population as a common framework for use in planning, policy formation and decision-making in a number of different fields. Uses of projections include, but are not limited to, the following:

  • all projections are used in producing household projections
  • National population projections (NPPs) are an input to the Office for Budget Responsibility long-term fiscal projections published in the fiscal sustainability report
  • NPPs are used to produce forecasts of expenditure for benefits and pensions and as an input for analysis on policy areas such as extending working lives
  • NPPs are used as the basis for Department for Education projections of future school pupil numbers
  • NPPs provide the base for other products such as subnational projections and marital status projections
  • subnational population projections (SNPPs) have in the past been used to inform the allocation of resources from central government to local areas
  • SNPPs are used in healthcare, education and emergency service provision
  • SNPPs are used to inform business development (including construction of new developments) and other local area planning
  • marital status projections are used by the Department for Work and Pensions to cost various aspects of the future social security programme
  • academic research
  • market research

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Content from the Office for National Statistics.
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