1921 Census of England and Wales, General Report with Appendices, Table 56 : " Birthplaces of the Population, 1851-1921. Proportions per 100,000 Persons. England and Wales".

Where Born. 1851. 1861. 1871. 1881. 1891. 1901. 1911. 1921.
Total Population 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000
                 
England and Wales 95,750 95,285 95,509 95,694 96,139 96,131 95,545 96,055
Elsewhere 4,250 4,715 4,491 4,306 3,861 3,869 3,538 3,368
                 
  Scotland 726 843 939 976 973 974 892 880
  Ireland 2,899 2,999 2,493 2,165 1,580 1,311 1,041 963
  Isle of Man and Channel
Islands		 77 92 114 113 105 110 102 103
  Other British Domin-
ions, Colonies, etc		 188 257 312 363 385 418 448 540
  Foreign Countries:—*                
  British Subjects by
Birth		 }64 88 171 217 120{ 239 185 139
  British Subjects by
Naturalisation		 43 61 126
  Alien or not stated
Nationality		 281 419 443 454 683 762 790 602
  At Sea 15 17 19 18 15 12 19 15
  Birthplace not stated† — — — — — — 917 577

* At each census (except those of 1891 and 1921), persons born abroad whose nationality was not stated were classed as British Subjects if they had distinctly British surnames and were not natives of the United States. In 1891 and 1921, such persons were included with those whose nationality was not stated.

† At censuses prior to 1911, persons whose birthplaces were not stated were included with those born in England and Wales.