| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 0 |
| Cambridgeshire | 0 |
| Channel Islands | 0 |
| Cheshire | 0 |
| Cornwall | 32 |
| 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 | 26 |
| Middlesex | 0 |
| Northumberland | 0 |
| Norfolk | 0 |
| Northamptonshire | 0 |
| Nottinghamshire | 0 |
| Oxfordshire | 0 |
| Rutland | 0 |
| Shropshire | 0 |
| Suffolk | 0 |
| Somerset | 1 |
| Surrey | 0 |
| Sussex | 0 |
| Staffordshire | 0 |
| Warwickshire | 0 |
| Westmorland | 0 |
| Wiltshire | 0 |
| Worcestershire | 0 |
| Yorkshire | 0 |
| 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 | 17 |
| Copper Miner | 4 |
| House Keeper | 2 |
| Housemaid | 2 |
| Tailoress | 2 |
| No Occupation | 2 |
| Painter | 2 |
| Copper Miner's Wife | 1 |
| Dress Maker | 1 |
| General Servant Domestic | 1 |
| Grocer | 1 |
| Laundress | 1 |
| Mining Agent | 1 |
| Retired Seaman | 1 |
| Seaman's Wife | 1 |
| Shoe Maker | 1 |
| Brass Finisher | 1 |
| Engineer Turner | 1 |
| House Decorater | 1 |
| Machinist | 1 |
| Plasterer | 1 |
| Name | Census Frequency |
|---|---|
| John Trevillion | 27 |
| George Trevillion | 22 |
| James Trevillion | 16 |
| William Trevillion | 16 |
| Mary Trevillion | 14 |
| Elizabeth Trevillion | 12 |
| Joseph Trevillion | 11 |
| Annie Trevillion | 10 |
| Sarah Trevillion | 10 |
| Thomas Trevillion | 10 |
| Ann Trevillion | 9 |
| Ellen Trevillion | 9 |
| Samuel Trevillion | 9 |
| Alfred Trevillion | 8 |
| Henry Trevillion | 8 |
| Jane Trevillion | 8 |
| Albert Trevillion | 6 |
| Amelia Trevillion | 6 |
| Emily Trevillion | 6 |
| Ada Trevillion | 5 |
| Emma Trevillion | 5 |
| Matilda Trevillion | 5 |
| Stephen Trevillion | 5 |
| Louis Trevillion | 4 |
| Louisa Trevillion | 4 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Trevallion | 90% | 676 |
| 2 | Trevillian | 90% | 580 |
| 3 | Trevillion | 100% | 421 |
The surname Trevillion is the 3rd most popular variant of Trevallion.