| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 0 |
| Cambridgeshire | 0 |
| Channel Islands | 0 |
| Cheshire | 5 |
| Cornwall | 3 |
| Cumberland | 0 |
| Derbyshire | 0 |
| Devon | 25 |
| Dorset | 0 |
| Durham | 9 |
| Essex | 2 |
| Gloucestershire | 6 |
| Hampshire | 11 |
| Herefordshire | 0 |
| Hertfordshire | 0 |
| Huntingdonshire (and Rutland) | 3 |
| Isle of Man | 23 |
| Kent | 3 |
| Lancashire | 108 |
| Leicestershire | 1 |
| Lincolnshire | 1 |
| London | 71 |
| Middlesex | 4 |
| Northumberland | 3 |
| Norfolk | 0 |
| Northamptonshire | 4 |
| Nottinghamshire | 2 |
| Oxfordshire | 0 |
| Rutland (and Huntingdonshire) | 3 |
| Shropshire | 4 |
| Suffolk | 0 |
| Somerset | 4 |
| Surrey | 8 |
| Sussex | 6 |
| Staffordshire | 15 |
| Warwickshire | 1 |
| Westmorland | 0 |
| Wiltshire | 0 |
| Worcestershire | 0 |
| Yorkshire | 15 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 2 |
| Carnarvonshire | 0 |
| Carmarthenshire | 0 |
| Denbighshire | 6 |
| Flintshire | 2 |
| Glamorgan | 0 |
| Merionethshire | 0 |
| Montgomeryshire | 1 |
| Monmouthshire | 4 |
| Pembrokeshire | 5 |
| Radnorshire | 6 |
| Profession | Census Frequency |
|---|---|
| Scholar | 56 |
| Labourer | 12 |
| House Servant | 8 |
| House Keeper | 6 |
| Agricultural Labourer | 6 |
| Servant | 5 |
| Laundress | 4 |
| Dress Maker | 4 |
| Dock Labourer | 4 |
| House Maid | 3 |
| Domestic Servant | 3 |
| Private | 3 |
| Silk Piecer | 2 |
| Bar Maid | 2 |
| Lace Minder | 2 |
| Nurse | 2 |
| Sailor | 2 |
| Cotton Weaver | 2 |
| Domestic Serv | 2 |
| Errand Boy | 2 |
| Porter | 2 |
| Tailor | 2 |
| Works In Cotton Ware House | 2 |
| Orphan | 2 |
| Railway Labourer | 2 |
| Name | Census Frequency |
|---|---|
| John Killy | 288 |
| Mary Killy | 277 |
| Thomas Killy | 191 |
| William Killy | 184 |
| James Killy | 182 |
| Elizabeth Killy | 134 |
| Margaret Killy | 124 |
| Ann Killy | 88 |
| Catherine Killy | 81 |
| Ellen Killy | 77 |
| Sarah Killy | 77 |
| Patrick Killy | 73 |
| Jane Killy | 70 |
| George Killy | 62 |
| Joseph Killy | 61 |
| Robert Killy | 58 |
| Michael Killy | 50 |
| Henry Killy | 47 |
| Eliza Killy | 44 |
| Edward Killy | 43 |
| Annie Killy | 37 |
| Richard Killy | 36 |
| Charles Killy | 35 |
| Alice Killy | 33 |
| Emma Killy | 33 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Kelly | 80% | 154,525 |
| 2 | Kelley | 67% | 25,023 |
| 3 | Killey | 83% | 3,726 |
| 4 | Killy | 100% | 3,601 |
| 5 | Keiley | 67% | 400 |
| 6 | Kally | 80% | 288 |
| 7 | Keilly | 83% | 216 |
| 8 | Kighley | 57% | 212 |
| 9 | Kalley | 67% | 141 |
| 10 | Okelly | 67% | 113 |
The surname Killy is the 4th most popular variant of Kelly.