1931 Census of England and Wales, General Report, Table 76 : " Persons Born in Foreign Countries, Distinguishing British Subjects and Foreigners, and Enumerated in England and Wales at each Census, 1851-1931".

Census Persons born in Foreign Countries British subjects born in Foreign Countries Foreigners
Number enumerated Increase or Decrease (-) per cent. Per 1000 of Total Population Number enumerated Increase or Decrease (-) per cent. Per 1000 of Total Population Number enumerated Increase or Decrease (-) per cent. Per 1000 of Total Population
                   
1851 61,708 - 3.4 11,419 - 0.6 50,289 - 2.8
1861 101,832 65.0 5.1 17,742 55.4 0.9 84,090 67.2 4.2
1871 139,445 36.9 6.1 38,807 118.7 1.7 100,638 19.7 4.4
1881 174,372 25.0 6.7 56,373 45.3 2.2 117,999 17.3 4.5
1891 233,008 33.6 8.0 34,895 -38.1 1.2 198,113 67.9 6.8
1901 339,436 45.7 10.4 91,678 162.7 2.8 247,758 25.1 7.6
1911 373,516 10.0 10.4 88,686 -3.3 2.5 284,830 15.0 7.9
1921 328,641 12.0 8.7 100,375 132 2.6 228,266 -19.9 6.0
1931 312,095 -5.0 7.8 128,301 27.8 3.2 183,794 -19.5 4.6