| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 0 |
| Cambridgeshire | 0 |
| Channel Islands | 0 |
| Cheshire | 0 |
| Cornwall | 2 |
| Cumberland | 0 |
| Derbyshire | 0 |
| Devon | 2 |
| Dorset | 0 |
| Durham | 0 |
| Essex | 0 |
| Gloucestershire | 0 |
| Hampshire | 0 |
| Herefordshire | 0 |
| Hertfordshire | 0 |
| Huntingdonshire | 0 |
| Isle of Man | 0 |
| Kent | 1 |
| Lancashire | 8 |
| Leicestershire | 0 |
| Lincolnshire | 0 |
| London | 4 |
| Middlesex | 0 |
| Northumberland | 0 |
| Norfolk | 0 |
| Northamptonshire | 0 |
| Nottinghamshire | 0 |
| Oxfordshire | 0 |
| Rutland | 0 |
| Shropshire | 0 |
| Suffolk | 0 |
| Somerset | 0 |
| Surrey | 0 |
| Sussex | 0 |
| Staffordshire | 0 |
| Warwickshire | 0 |
| Westmorland | 0 |
| Wiltshire | 0 |
| Worcestershire | 0 |
| Yorkshire | 1 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 0 |
| Carnarvonshire | 0 |
| Carmarthenshire | 0 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 3 |
| Merionethshire | 0 |
| Montgomeryshire | 0 |
| Monmouthshire | 0 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| Hawker | 2 |
| Labourer | 2 |
| Errand Boy | 2 |
| Agricultural Labourer | 1 |
| Nailor | 1 |
| General Servant | 1 |
| Pattern Maker | 1 |
| Sells Fish | 1 |
| Servant | 1 |
| Washer Print Works | 1 |
| Knackerman | 1 |
| Sells Ships In The Street | 1 |
| Name | Census Frequency |
|---|---|
| John Coly | 10 |
| Elizabeth Coly | 8 |
| Mary Coly | 8 |
| William Coly | 8 |
| James Coly | 7 |
| Catherine Coly | 6 |
| Ann Coly | 5 |
| Eliza Coly | 5 |
| George Coly | 5 |
| Richard Coly | 5 |
| Thomas Coly | 5 |
| Annie Coly | 4 |
| Sarah Coly | 4 |
| Edward Coly | 3 |
| Emma Coly | 3 |
| Samuel Coly | 3 |
| Bridget Coly | 2 |
| Caroline Coly | 2 |
| Charles Coly | 2 |
| Hannah Coly | 2 |
| Harry Coly | 2 |
| Jane Coly | 2 |
| Julia Coly | 2 |
| Leonard Coly | 2 |
| Maria Coly | 2 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Clay | 50% | 46,095 |
| 2 | Colley | 67% | 28,567 |
| 3 | Coley | 80% | 14,403 |
| 4 | Caley | 60% | 8,870 |
| 5 | Cooley | 67% | 6,530 |
| 6 | Colly | 80% | 2,020 |
| 7 | Collie | 50% | 1,685 |
| 8 | Claye | 40% | 618 |
| 9 | Couley | 67% | 544 |
| 10 | Culy | 75% | 451 |
| 11 | Coaley | 67% | 443 |
| 12 | Cley | 50% | 335 |
| 13 | Culey | 60% | 307 |
| 14 | Cauley | 50% | 293 |
| 15 | Ceely | 60% | 187 |
| 16 | Caly | 75% | 177 |
| 17 | Cloy | 50% | 177 |
| 18 | Coly | 100% | 162 |
| 19 | Coiley | 67% | 153 |
| 20 | Cooly | 80% | 147 |
| 21 | Cailey | 50% | 144 |
| 22 | Ecley | 40% | 116 |
The surname Coly is the 18th most popular variant of Clay.