Population of London 2022, by borough
London is by far the largest city in the United Kingdom, and is split up into 33 smaller units called boroughs. As of 2022 the largest of these boroughs, in terms of population, was Croydon, which had a population of 392,224 in. London's historic center, the City of London, was the smallest borough in terms of population size, at just 10,847 people.