The UK population is estimated at 69,483,939 people in mid-2025, setting a new peak, with growth of 227,665 over the previous 12 months. The figure indicates that the number of residents continues to rise, but at a slower pace than in earlier periods.
The reporting attributes the slowing growth to changes in demographic drivers, including lower net migration and falling birth rates. While the overall level increases, the balance between people coming into the country and births relative to deaths appears to be less supportive of rapid population growth than before. Across the sources provided, the same mid-2025 estimate and the same year-on-year increase are cited, with emphasis on the idea that growth is moderating.
