The population of the UK at mid-year 2020 was estimated to be 67.1 million, an increase of about 284,000 (0.4%) since mid-year 2019.
In the year to mid-2020, there were 669,000 deaths; this is the most in a mid-year reference period since 1986, and 13% higher than in the year to mid-2019, reflecting the impact of wave one of the coronavirus (COVID-19) pandemic.
The number of births in mid-2020 was 701,000, the lowest number of births since 2003 and a continuation of the trend in fewer births seen over recent years.
In mid-2020, the non-UK-born population was 9.2 million and the non-British population was 6.0 million; both decreased by 246,000 and 231,000 respectively since the previous year, following relative stability since 2017.
This was mainly because of a reduction in EU8 and EU2 populations, which have fallen by 125,000 and 57,000 respectively for those born in these countries.
Polish has continued to be the most common non-British nationality and India is still the most common non-UK country of birth.
Different migration-related data sources at local authority level including migration flows, non-UK-born and non-British populations, National Insurance number registrations, GP registrations, and births to non-UK-born mothers.
2011 Census internal migration statistics for the UK give estimates that classify people and households in areas within the UK and those having moved from each area to elsewhere within the UK in the year preceding the Census.