The impact of migration on UK population growth
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Based on official population estimates and population projections, this briefing examines the impact of migration on recent and future UK demographic trends.
Key points
- More than half (60%) of the increase of the UK population between 2001 and 2020 was due to the direct contribution of net migration.
- Official figures project that the growth in the UK’s population will be slower over the next 25 years than in the previous 25 years. The UK’s population is projected to grow to approximately 72 million by 2045.
- Scotland and Wales would experience population decline without future net migration.
- Net migration assumptions have been continually revised in the projections released since the mid-1990s, reflecting rising levels of net migration and the high uncertainty of migration forecasting.
Understanding the evidence
Key concepts
In the UK statistical system, long-term international migrants are defined as people who move into and out of the country for at least 12 months. Net migratio...
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