| Bedfordshire | 2 |
| Buckinghamshire | 12 |
| Berkshire | 16 |
| Cambridgeshire | 13 |
| Channel Islands | 2 |
| Cheshire | 26 |
| Cornwall | 14 |
| Cumberland | 83 |
| Derbyshire | 16 |
| Devon | 23 |
| Dorset | 7 |
| Durham | 242 |
| Essex | 18 |
| Gloucestershire | 11 |
| Hampshire | 28 |
| Herefordshire | 3 |
| Hertfordshire | 21 |
| Huntingdonshire (and Rutland) | 1 |
| Isle of Man | 0 |
| Kent | 33 |
| Lancashire | 235 |
| Leicestershire | 8 |
| Lincolnshire | 43 |
| London | 399 |
| Middlesex | 23 |
| Northumberland | 424 |
| Norfolk | 35 |
| Northamptonshire | 6 |
| Nottinghamshire | 8 |
| Oxfordshire | 21 |
| Rutland (and Huntingdonshire) | 1 |
| Shropshire | 11 |
| Suffolk | 32 |
| Somerset | 16 |
| Surrey | 7 |
| Sussex | 16 |
| Staffordshire | 8 |
| Warwickshire | 42 |
| Westmorland | 56 |
| Wiltshire | 24 |
| Worcestershire | 4 |
| Yorkshire | 439 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 3 |
| Carnarvonshire | 0 |
| Carmarthenshire | 1 |
| Denbighshire | 1 |
| Flintshire | 0 |
| Glamorgan | 5 |
| Merionethshire | 0 |
| Montgomeryshire | 1 |
| Monmouthshire | 8 |
| Pembrokeshire | 1 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| Scholar | 330 |
| Agricultural Labourer | 83 |
| House Servant | 54 |
| Labourer | 38 |
| Coal Miner | 27 |
| At Home | 21 |
| Servant | 21 |
| Dress Maker | 18 |
| Farm Labourer | 17 |
| Blacksmith | 15 |
| Farm Servant | 15 |
| Scholar At Home | 14 |
| General Servant | 12 |
| Laundress | 12 |
| Gardener | 11 |
| Annuitant | 11 |
| Carpenter | 10 |
| House Maid | 9 |
| Engineer | 9 |
| Butcher | 8 |
| Farmer's Son | 8 |
| Cook | 7 |
| House Keeper | 7 |
| Errand Boy | 7 |
| Joiner | 7 |
| Name | Census Frequency |
|---|---|
| William Allan | 2,660 |
| John Allan | 2,587 |
| Mary Allan | 2,460 |
| Elizabeth Allan | 1,642 |
| James Allan | 1,586 |
| George Allan | 1,445 |
| Thomas Allan | 1,372 |
| Sarah Allan | 1,055 |
| Margaret Allan | 1,005 |
| Robert Allan | 962 |
| Jane Allan | 944 |
| Ann Allan | 726 |
| Annie Allan | 576 |
| Charles Allan | 549 |
| Joseph Allan | 549 |
| Isabella Allan | 461 |
| Alice Allan | 456 |
| Ellen Allan | 454 |
| Henry Allan | 426 |
| Richard Allan | 372 |
| Alexander Allan | 345 |
| Edward Allan | 328 |
| Hannah Allan | 327 |
| Eliza Allan | 326 |
| David Allan | 301 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Allen | 80% | 422,866 |
| 2 | Allan | 100% | 38,712 |
| 3 | Ellen | 60% | 14,608 |
| 4 | Allin | 80% | 7,055 |
| 5 | Ellin | 60% | 1,822 |
| 6 | Allon | 80% | 1,655 |
| 7 | Ellan | 80% | 514 |
| 8 | Lilian | 50% | 319 |
| 9 | Lelean | 50% | 279 |
| 10 | Alan | 80% | 262 |
| 11 | Ellon | 60% | 251 |
| 12 | Ellion | 50% | 224 |
| 13 | Lelen | 40% | 146 |
| 14 | Allain | 83% | 139 |
| 15 | Lealan | 50% | 139 |
| 16 | Ollen | 60% | 114 |
| 17 | Ollin | 60% | 109 |
The surname Allan is the 2nd most popular variant of Allen.