1911 Census of England and Wales, General Report with Appendices, Table 104: " Administrative Counties and Large Towns with Highest Proportions of Natives of Ireland".

Administrative Counties. Proportion per
100,000 of each sex.
Large Towns. Proportion per
100,000 of each sex.
Males. Females. Males. Females.
Hampshire 2,139 1,572 Bootle 7,484 5,955
Cumberland 1,842 1,481 Liverpool 4,738 4,549
Lancashire 1,807 1,252 Devonport 6,022 2,851
Cheshire 1,560 1,235 Barrow-in-Furness 4,384 3,606
Durham 1,567 912 Birkenhead 3,638 3,725
London. 1,039 1,236 Wallasey 3,163 3,383
Pembrokeshire 1,247 817 St. Helens 3,904 2,240
Surrey 895 1,085 Salford 2,848 2,812
Northumberland 1,138 709 Merthyr Tydfil 3,891 1,667
Kent 929 869 Manchester 2,606 2,550
Anglesey 842 938 Wigan 2,992 1,743
Middlesex 753 974      
Dorsetshire 1,018 704