1921 Census of England and Wales, General Report with Appendices, Table 55 : " Birthplaces of Persons, Males and Females, and Proportions per 100,000 of the total Population of each sex, 1921".

— Enumerated Population. Proportions per 100,000. Ratio of
Male Pro-
portions
per cent.
of Female
Propor-
tions.
Persons. Males. Females. Persons. Males. Females.
Total Population 37,886,699 18,075,239 19,811,460 100,000 100,000 100,000 —
               
Born in England and Wales 36,391,971 17,344,667 19,047,304 96,055 95,958 96,143 100
Born Elsewhere 1,275,884 630,955 644,929 3,368 3,491 3,255 107
Birthplace not stated 218,844 99,617 119,227 577 551 602 92
               
Born in Scotland 333,517 162,164 171,353 880 897 865 104
Born in Ireland 364,747 178,706 186,041 963 989 938 105
               
  Six Northern Counties* 65,491 34,110 31,381 173 189 158 120
  Irish Free State 281,190 135,129 146,061 742 748 737 101
  Part not defined 18,066 9,467 8,599 48 52 43 121
               
Born in Islands in the
British Seas		 38,862 17,518 21,344 103 97 108 90
Born in British Colonies
and India		 204,466 98,352 106,114 540 544 536 101
Born in Foreign Countries 328,641 171,717 156,924 867 950 792 120
Born at Sea 5,651 2,498 3,153 15 14 16 87

* Viz., Antrim, Armagh, Down, Fermanagh, Londonderry and Tyrone.