The demography of London is analysed by the Office for National Statistics and data is produced for each of the Greater London wards, the City of London and the 32 London boroughs, the Inner London and Outer London statistical sub-regions, each of the Parliamentary constituencies in London, and for all of Greater London as a whole. Additionally, data is produced for the Greater London Urban Area. Statistical information is produced about the size and geographical breakdown of the population, the number of people entering and leaving country and the number of people in each demographic subgroup. The total population of London as of 2021 is 8,799,800. History Creation of Greater London - 1965 Through the London Government Act of 1963, the Greater London region was established. Migration boom - 1997 to today From 1997 onwards, London has experienced a drastic change in the composition of the city's population, which has off set the decline of the population which had been occurring. In 1991, 21.7% of the city was foreign born but by 2011 this had risen to 36.7%. In 2011, a historic tipping point occurred with the release of the 2011 census indicating that the White British population, which had before been the majority, was now a minority of the city's population. Population The historical population for the current area of Greater London, divided into the statistical areas of Inner and Outer London is as follows: Age Fertility In 2021, a total of 110,961 live births occurred within the city. The fertility rate of London in 2021 was 1.52, which is below replacement. Population density The population density of London was 5,727 per km2 in 2011. Urban and metropolitan area At the 2001 census, the population of the Greater London Urban Area was 8,278,251. This area does not include some outliers within Greater London, but does extend into the adjacent South East England and East of England regions. In 2004 the London Plan of the Mayor of London defined a metropolitan region with a population of 18 million. Eurostat has developed a harmonising standard for comparing metropolitan areas in the European Union and the population of the London Larger Urban Zone is 11,917,000; it occupies an area of . Another definition gives the population of the metropolitan area as 13,709,000. Ethnicity For the overwhelming majority of London's history, the population of the city was ethnically homogenous with the population being