| Bedfordshire | 1 |
| Buckinghamshire | 3 |
| Berkshire | 11 |
| Cambridgeshire | 1 |
| Channel Islands | 2 |
| Cheshire | 98 |
| Cornwall | 3 |
| Cumberland | 4 |
| Derbyshire | 26 |
| Devon | 11 |
| Dorset | 16 |
| Durham | 102 |
| Essex | 37 |
| Gloucestershire | 18 |
| Hampshire | 19 |
| Herefordshire | 0 |
| Hertfordshire | 6 |
| Huntingdonshire | 0 |
| Isle of Man | 0 |
| Kent | 38 |
| Lancashire | 800 |
| Leicestershire | 24 |
| Lincolnshire | 2 |
| London | 240 |
| Middlesex | 42 |
| Northumberland | 58 |
| Norfolk | 0 |
| Northamptonshire | 19 |
| Nottinghamshire | 37 |
| Oxfordshire | 0 |
| Rutland | 0 |
| Shropshire | 3 |
| Suffolk | 0 |
| Somerset | 19 |
| Surrey | 31 |
| Sussex | 16 |
| Staffordshire | 33 |
| Warwickshire | 57 |
| Westmorland | 2 |
| Wiltshire | 4 |
| Worcestershire | 10 |
| Yorkshire | 311 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 0 |
| Carnarvonshire | 2 |
| Carmarthenshire | 2 |
| Denbighshire | 0 |
| Flintshire | 7 |
| Glamorgan | 8 |
| Merionethshire | 0 |
| Montgomeryshire | 0 |
| Monmouthshire | 8 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| School | 233 |
| Labourer | 26 |
| Coal Miner Hewer | 26 |
| General Labourer | 20 |
| Dock Labourer | 16 |
| Housekeeper | 15 |
| Domestic Servant | 9 |
| Weaver | 9 |
| General Servant (domestic) | 9 |
| Home | 9 |
| Bricklayers Labourer | 8 |
| None | 8 |
| Cotton Weaver | 8 |
| Dressmaker | 8 |
| Clerk | 7 |
| At Home | 7 |
| House Keeper | 7 |
| Labourer General | 7 |
| Charwoman | 6 |
| Rag Sorter | 6 |
| Cotton Spinner | 6 |
| Farm Labourer | 6 |
| Labourer Bricksetter | 6 |
| School Boy | 6 |
| Miner Hewer | 6 |
| Name | Census Frequency |
|---|---|
| Mary Costello | 774 |
| John Costello | 729 |
| Thomas Costello | 520 |
| James Costello | 387 |
| William Costello | 333 |
| Margaret Costello | 293 |
| Michael Costello | 237 |
| Patrick Costello | 227 |
| Catherine Costello | 218 |
| Ellen Costello | 205 |
| Elizabeth Costello | 186 |
| Bridget Costello | 184 |
| Ann Costello | 165 |
| Edward Costello | 120 |
| Sarah Costello | 115 |
| Annie Costello | 110 |
| Jane Costello | 101 |
| Joseph Costello | 99 |
| Peter Costello | 82 |
| George Costello | 67 |
| Richard Costello | 63 |
| Kate Costello | 62 |
| Martin Costello | 60 |
| Alice Costello | 59 |
| Henry Costello | 56 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Costello | 100% | 7,711 |
| 2 | Castell | 75% | 3,726 |
| 3 | Costella | 88% | 820 |
| 4 | Costall | 75% | 528 |
| 5 | Castello | 88% | 457 |
| 6 | Castelli | 75% | 405 |
| 7 | Costelo | 88% | 283 |
| 8 | Costell | 88% | 275 |
| 9 | Costelloe | 89% | 216 |
| 10 | Costelle | 88% | 153 |
The surname Costello is the most popular version of all its varients