What was the size of the population of Britain by 1900?
Additionally, in the second half of the 19th century, the population of England continued to grow quickly from 16.8 million in 1851 to 30.5 million in 1901.
What was the population of the UK in 1861?
Population of the British Empire
The 1861 census was the first national census to make an attempt at arriving at a population figure for the British Empire. The figures arrived at were 9,496,669 (British Colonies) and 135,571,351 (British India).