1921 Census of England and Wales, General Report with Appendices, Table 59 : " Persons born in Dominions, Colonies, etc".

Country of Birth. Number, 1921. Increase (or Decrease —)
1911-1921.
Persons. Males. Females. Persons.
Europe:—        
  Gibraltar 4,997 2,204 2,793 335
  Malta and Gozo 6,736 3,346 3,390 1,033
  Cyprus 334 211 123 126
         
Asia:—        
  Indian Empire 74,219 35,085 39,134 11,245
  Ceylon 3,880 1,863 2,017 523
  Other Colonies in Asia 7,550 4,868 2,682 3,399*
         
Africa:—        
  Union of South Africa 22,990 10,448 12,542 7,270
  Egypt 3,474 1,925 1,549 Not separately returned in 1911,
included in Africa (foreign).
  West African Colonies 1,906 1,430 476 785
  Other African Colonies 3,037 1,702 1,335 -389*
         
America:—        
  Dominion of Canada 29,475 14,155 15,320 10,588
  Newfoundland 1,145 486 659 -7
  West Indies 9,054 4,622 4,432 -135
  Other Colonies in America 1,851 829 1,022 170
         
Australasia:—        
  Australian Commonwealth 26,348 11,783 14,565 3,186
  New Zealand 7,257 3,319 3,938 1,291
  Other Australasian Colonies 182 64 118 76*
         
Dominion, Colony, etc., not specified 31 12 19 -6

* The 1921 areas include mandated territories.