| Bedfordshire | 20 |
| Buckinghamshire | 29 |
| Berkshire | 22 |
| Cambridgeshire | 117 |
| Channel Islands | 11 |
| Cheshire | 31 |
| Cornwall | 1 |
| Cumberland | 0 |
| Derbyshire | 14 |
| Devon | 13 |
| Dorset | 2 |
| Durham | 23 |
| Essex | 366 |
| Gloucestershire | 63 |
| Hampshire | 27 |
| Herefordshire | 21 |
| Hertfordshire | 47 |
| Huntingdonshire (and Rutland) | 6 |
| Isle of Man | 0 |
| Kent | 97 |
| Lancashire | 171 |
| Leicestershire | 15 |
| Lincolnshire | 24 |
| London | 745 |
| Middlesex | 186 |
| Northumberland | 38 |
| Norfolk | 260 |
| Northamptonshire | 58 |
| Nottinghamshire | 55 |
| Oxfordshire | 2 |
| Rutland (and Huntingdonshire) | 6 |
| Shropshire | 75 |
| Suffolk | 300 |
| Somerset | 8 |
| Surrey | 146 |
| Sussex | 69 |
| Staffordshire | 160 |
| Warwickshire | 47 |
| Westmorland | 0 |
| Wiltshire | 9 |
| Worcestershire | 59 |
| Yorkshire | 135 |
| Anglesey | 1 |
| Brecknockshire | 0 |
| Cardiganshire | 0 |
| Carnarvonshire | 5 |
| Carmarthenshire | 4 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 56 |
| Merionethshire | 8 |
| Montgomeryshire | 0 |
| Monmouthshire | 2 |
| Pembrokeshire | 5 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| General Labourer | 44 |
| Living On Own Means | 44 |
| Dress Maker | 32 |
| General Servant Domestic | 26 |
| Agricultural Labourer | 25 |
| Scholar | 19 |
| Gardener Domestic | 15 |
| Bricklayer | 14 |
| Charwoman | 14 |
| School | 14 |
| Dressmaker | 14 |
| Carpenter | 13 |
| Cook Domestic | 12 |
| Domestic Servant | 12 |
| House Keeper Domestic | 12 |
| Tailor | 12 |
| Laundress Wash | 11 |
| Coal Miner Hewer | 11 |
| Housemaid Domestic | 10 |
| House Maid Domestic | 9 |
| Railway Porter | 8 |
| Ordinary Agricultural Labourer | 8 |
| Farm Labourer | 8 |
| Farmer | 8 |
| French Polisher | 7 |
| Name | Census Frequency |
|---|---|
| William Fenn | 1,319 |
| Mary Fenn | 1,136 |
| John Fenn | 1,087 |
| Elizabeth Fenn | 778 |
| Sarah Fenn | 706 |
| George Fenn | 681 |
| Thomas Fenn | 669 |
| James Fenn | 649 |
| Charles Fenn | 534 |
| Robert Fenn | 379 |
| Henry Fenn | 356 |
| Alice Fenn | 350 |
| Ann Fenn | 350 |
| Eliza Fenn | 344 |
| Edward Fenn | 319 |
| Emma Fenn | 296 |
| Ellen Fenn | 295 |
| Jane Fenn | 282 |
| Annie Fenn | 271 |
| Joseph Fenn | 271 |
| Alfred Fenn | 257 |
| Frederick Fenn | 242 |
| Emily Fenn | 241 |
| Arthur Fenn | 240 |
| Louisa Fenn | 197 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Fenn | 100% | 20,947 |
| 2 | Finn | 75% | 15,615 |
| 3 | Fann | 75% | 2,164 |
| 4 | Finan | 60% | 1,083 |
| 5 | Fenna | 80% | 889 |
| 6 | Finnie | 50% | 865 |
| 7 | Fen | 75% | 460 |
| 8 | Funn | 75% | 460 |
| 9 | Fenan | 80% | 264 |
| 10 | Phenn | 60% | 198 |
| 11 | Fon | 50% | 191 |
| 12 | Feenan | 67% | 174 |
| 13 | Fanon | 60% | 149 |
| 14 | Feen | 75% | 127 |
The surname Fenn is the most popular version of all its varients