| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 0 |
| Cambridgeshire | 0 |
| Channel Islands | 0 |
| Cheshire | 0 |
| 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 | 0 |
| Lancashire | 0 |
| Leicestershire | 0 |
| Lincolnshire | 0 |
| London | 0 |
| 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 | 3 |
| Warwickshire | 0 |
| Westmorland | 0 |
| Wiltshire | 0 |
| Worcestershire | 0 |
| Yorkshire | 45 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 0 |
| Carnarvonshire | 0 |
| Carmarthenshire | 0 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 0 |
| Merionethshire | 0 |
| Montgomeryshire | 0 |
| Monmouthshire | 0 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| Scholar | 11 |
| Bricklayer | 2 |
| Stone Mason | 2 |
| Boatman | 1 |
| Blacksmith | 1 |
| Bricklayer Mason & Publican | 1 |
| Cook Domestic | 1 |
| Farm Servant Carter | 1 |
| Infant | 1 |
| Labourer | 1 |
| Land Surveyor | 1 |
| Land Surveyor's Wife | 1 |
| Landed Proprietor | 1 |
| Licenced Victualler | 1 |
| Overlooker Worsted Mill | 1 |
| Railway Porter | 1 |
| Servant | 1 |
| Woollen Weaver | 1 |
| Name | Census Frequency |
|---|---|
| John Boulby | 37 |
| Mary Boulby | 30 |
| William Boulby | 25 |
| Joseph Boulby | 21 |
| George Boulby | 15 |
| Annie Boulby | 14 |
| Charles Boulby | 14 |
| Sarah Boulby | 14 |
| Ann Boulby | 13 |
| Elizabeth Boulby | 13 |
| James Boulby | 13 |
| Thomas Boulby | 13 |
| Robert Boulby | 12 |
| Herbert Boulby | 11 |
| Eliza Boulby | 10 |
| Emily Boulby | 10 |
| Jane Boulby | 10 |
| Adam Boulby | 8 |
| Arthur Boulby | 8 |
| Ellen Boulby | 8 |
| Harry Boulby | 8 |
| Lydia Boulby | 8 |
| Edith Boulby | 7 |
| Mark Boulby | 7 |
| Matilda Boulby | 7 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Bielby | 67% | 3,539 |
| 2 | Bilby | 67% | 2,282 |
| 3 | Beilby | 67% | 1,892 |
| 4 | Bealby | 67% | 1,006 |
| 5 | Boulby | 100% | 557 |
| 6 | Blaby | 50% | 516 |
| 7 | Bilbey | 50% | 393 |
| 8 | Bulby | 83% | 284 |
| 9 | Belby | 67% | 224 |
| 10 | Balby | 67% | 220 |
| 11 | Blabey | 33% | 177 |
| 12 | Bleby | 50% | 171 |
| 13 | Bailby | 67% | 125 |
The surname Boulby is the 5th most popular variant of Bielby.