| Bedfordshire | 0 |
| Buckinghamshire | 3 |
| Berkshire | 0 |
| Cambridgeshire | 0 |
| Channel Islands | 6 |
| Cheshire | 16 |
| Cornwall | 5 |
| Cumberland | 1 |
| Derbyshire | 1 |
| Devon | 4 |
| Dorset | 1 |
| Durham | 52 |
| Essex | 8 |
| Gloucestershire | 7 |
| Hampshire | 10 |
| Herefordshire | 0 |
| Hertfordshire | 2 |
| Huntingdonshire | 0 |
| Isle of Man | 0 |
| Kent | 16 |
| Lancashire | 71 |
| Leicestershire | 3 |
| Lincolnshire | 11 |
| London | 128 |
| Middlesex | 48 |
| Northumberland | 40 |
| Norfolk | 0 |
| Northamptonshire | 2 |
| Nottinghamshire | 2 |
| Oxfordshire | 0 |
| Rutland | 0 |
| Shropshire | 1 |
| Suffolk | 4 |
| Somerset | 0 |
| Surrey | 24 |
| Sussex | 2 |
| Staffordshire | 2 |
| Warwickshire | 0 |
| Westmorland | 0 |
| Wiltshire | 0 |
| Worcestershire | 4 |
| Yorkshire | 73 |
| Anglesey | 2 |
| Brecknockshire | 0 |
| Cardiganshire | 1 |
| Carnarvonshire | 0 |
| Carmarthenshire | 3 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 35 |
| Merionethshire | 1 |
| Montgomeryshire | 0 |
| Monmouthshire | 15 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| School | 50 |
| A B Seaman | 8 |
| Cook | 8 |
| Fireman | 7 |
| Sailor | 5 |
| Master | 5 |
| At Home | 5 |
| Seaman | 5 |
| General Servant (domestic) | 4 |
| None | 4 |
| Tailoress | 4 |
| Engineer | 4 |
| General Labourer | 4 |
| Ab Seaman | 3 |
| Bootmaker | 3 |
| Hotel Waiter | 3 |
| Private Means | 3 |
| Waiter | 3 |
| Labourer | 3 |
| 2nd Mate | 2 |
| Donkeyman | 2 |
| Municipal School | 2 |
| Student | 2 |
| General Servant | 2 |
| Artiste (music ) | 2 |
| Name | Census Frequency |
|---|---|
| John Jensen | 43 |
| Mary Jensen | 33 |
| George Jensen | 32 |
| Jens Jensen | 25 |
| Carl Jensen | 24 |
| Peter Jensen | 24 |
| Elizabeth Jensen | 23 |
| James Jensen | 23 |
| Henry Jensen | 22 |
| Hans Jensen | 21 |
| William Jensen | 20 |
| Frederick Jensen | 19 |
| Christian Jensen | 18 |
| Johan Jensen | 18 |
| Alice Jensen | 16 |
| Annie Jensen | 16 |
| Sarah Jensen | 15 |
| Niels Jensen | 13 |
| Albert Jensen | 12 |
| Frank Jensen | 12 |
| Harold Jensen | 12 |
| Jane Jensen | 12 |
| Ole Jensen | 12 |
| Eliza Jensen | 11 |
| Charles Jensen | 10 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Janson | 67% | 5,757 |
| 2 | Jonson | 67% | 3,650 |
| 3 | Jenson | 83% | 2,204 |
| 4 | Joinson | 57% | 1,934 |
| 5 | Jensen | 100% | 1,352 |
| 6 | Janeson | 57% | 866 |
| 7 | Jansen | 83% | 684 |
| 8 | Jenison | 71% | 648 |
| 9 | Jinson | 67% | 431 |
| 10 | Joneson | 57% | 393 |
| 11 | Jainson | 57% | 131 |
| 12 | Genson | 67% | 114 |
The surname Jensen is the 5th most popular variant of Janson.