London's demographic shift: when a city outgrows its own majority

History · Published 18 October 2026 Swipe more like this →

In short: For most of its history, London was ethnically homogenous. That changed rapidly in the late 20th century. By 2011, the city reached a historic tipping point where White British residents were no longer the majority, marking one of the fastest demographic transformations in modern urban history.

The transformation of London's population is characterized by a dramatic shift from homogeneity to extreme diversity. Historically, the city was predominantly White British, with only small clusters of minority groups like Jewish communities in the East End. This began to change significantly after 1948 and accelerated sharply from the 1990s onwards. By the time of the 2011 Census, a major milestone was reached: the White British population ceased to be the majority of London's residents, even though they remained the largest single ethnic group.

The scale of this diversity is reflected in current data. According to the 2021 Census, London is the most ethnically diverse region in England and Wales, with 63.2% of its residents identifying as part of an ethnic minority group. This includes a high concentration of specific groups: nearly half of all people from 'other' ethnic groups (44.3%) and almost half of all black people (49.3%) in the country now live in London. Conversely, it holds the lowest percentage of White British residents of any region at 36.8%.

This diversity is not uniform across the city but concentrated in specific hubs. Newham stands out as the most ethnically diverse local authority in England and Wales, where people from Asian, black, mixed, or 'other' groups make up 69.2% of the population. While the South East remains the region with the highest percentage of white residents overall, London has become the primary destination for white minority groups, including 35.2% of those identifying as White 'other' and 30.8% of White Irish people.

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