| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 3 |
| Cambridgeshire | 0 |
| Channel Islands | 0 |
| Cheshire | 6 |
| Cornwall | 0 |
| Cumberland | 0 |
| Derbyshire | 0 |
| Devon | 0 |
| Dorset | 0 |
| Durham | 0 |
| Essex | 0 |
| Gloucestershire | 0 |
| Hampshire | 0 |
| Herefordshire | 0 |
| Hertfordshire | 0 |
| Huntingdonshire | 0 |
| Isle of Man | 0 |
| Kent | 14 |
| Lancashire | 6 |
| Leicestershire | 0 |
| Lincolnshire | 1 |
| London | 14 |
| Middlesex | 0 |
| Northumberland | 0 |
| Norfolk | 0 |
| Northamptonshire | 0 |
| Nottinghamshire | 2 |
| Oxfordshire | 0 |
| Rutland | 0 |
| Shropshire | 0 |
| Suffolk | 0 |
| Somerset | 11 |
| Surrey | 0 |
| Sussex | 1 |
| Staffordshire | 0 |
| Warwickshire | 1 |
| Westmorland | 0 |
| Wiltshire | 0 |
| Worcestershire | 1 |
| Yorkshire | 1 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 0 |
| Carnarvonshire | 0 |
| Carmarthenshire | 0 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 1 |
| Merionethshire | 0 |
| Montgomeryshire | 0 |
| Monmouthshire | 1 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| Scholar | 6 |
| General Servant | 3 |
| Coach Painter | 2 |
| Unemployed | 2 |
| General Labourer | 2 |
| Telegraphist Clerk Rail | 2 |
| Factory Operative Cm | 2 |
| Book Sellers Assistant | 1 |
| Domestic Servant | 1 |
| Governess School | 1 |
| Milliner | 1 |
| Seaman | 1 |
| Coal Dealer | 1 |
| Stone Mason | 1 |
| Masons Labourer | 1 |
| Shoe Maker | 1 |
| Clerk Brewer | 1 |
| Clerk Gas Work | 1 |
| Clerk Iron Rolling Mills | 1 |
| Commercial Clerk | 1 |
| Dress Maker | 1 |
| General Domestic Servant | 1 |
| Bricklayer Labourer | 1 |
| Plasterer | 1 |
| Pawnbroker Manager | 1 |
| Name | Census Frequency |
|---|---|
| Mary Costell | 32 |
| John Costell | 20 |
| Thomas Costell | 15 |
| William Costell | 12 |
| George Costell | 11 |
| Patrick Costell | 8 |
| Ann Costell | 7 |
| Elizabeth Costell | 7 |
| Joseph Costell | 7 |
| Michael Costell | 7 |
| Annie Costell | 5 |
| Catherine Costell | 5 |
| Emily Costell | 5 |
| Margaret Costell | 5 |
| Sarah Costell | 5 |
| Bridget Costell | 4 |
| Edward Costell | 4 |
| Florence Costell | 4 |
| Henry Costell | 4 |
| James Costell | 4 |
| Amelia Costell | 3 |
| Arthur Costell | 3 |
| Charles Costell | 3 |
| David Costell | 3 |
| Ellen Costell | 3 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Costello | 88% | 7,711 |
| 2 | Castell | 86% | 3,726 |
| 3 | Costella | 88% | 820 |
| 4 | Costall | 86% | 528 |
| 5 | Castello | 75% | 457 |
| 6 | Castelli | 75% | 405 |
| 7 | Costell | 100% | 275 |
| 8 | Costelloe | 78% | 216 |
| 9 | Costelle | 88% | 153 |
The surname Costell is the 7th most popular variant of Costello.