| Bedfordshire | 3 |
| Buckinghamshire | 9 |
| Berkshire | 18 |
| Cambridgeshire | 2 |
| Channel Islands | 3 |
| Cheshire | 7 |
| Cornwall | 1 |
| Cumberland | 0 |
| Derbyshire | 3 |
| Devon | 9 |
| Dorset | 0 |
| Durham | 22 |
| Essex | 80 |
| Gloucestershire | 9 |
| Hampshire | 115 |
| Herefordshire | 0 |
| Hertfordshire | 65 |
| Huntingdonshire | 0 |
| Isle of Man | 0 |
| Kent | 64 |
| Lancashire | 63 |
| Leicestershire | 1 |
| Lincolnshire | 0 |
| London | 440 |
| Middlesex | 55 |
| Northumberland | 14 |
| Norfolk | 8 |
| Northamptonshire | 0 |
| Nottinghamshire | 5 |
| Oxfordshire | 14 |
| Rutland | 0 |
| Shropshire | 1 |
| Suffolk | 11 |
| Somerset | 6 |
| Surrey | 33 |
| Sussex | 40 |
| Staffordshire | 23 |
| Warwickshire | 3 |
| Westmorland | 12 |
| Wiltshire | 32 |
| Worcestershire | 5 |
| Yorkshire | 27 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 0 |
| Carnarvonshire | 0 |
| Carmarthenshire | 0 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 4 |
| Merionethshire | 0 |
| Montgomeryshire | 0 |
| Monmouthshire | 14 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| General Labourer | 29 |
| Scholar | 11 |
| General Servant Domestic | 10 |
| Cigar Maker | 9 |
| Laundress Wash | 9 |
| Living On Own Means | 9 |
| Dress Maker | 8 |
| Domestic Servant | 7 |
| Charwoman | 5 |
| Carter On Farm | 5 |
| Carter | 4 |
| Cook Domestic | 4 |
| Dock Labourer | 4 |
| General Domestic Servant | 4 |
| Carpenter | 4 |
| House Keeper Domestic | 4 |
| Farmer | 4 |
| Bricklayer's Labourer | 3 |
| Carman | 3 |
| Domestic Housemaid | 3 |
| Errand Boy | 3 |
| French Polisher | 3 |
| Brickfield Labourer | 3 |
| Farm Labourer General | 3 |
| Gardener Domestic | 3 |
| Name | Census Frequency |
|---|---|
| Mary Coster | 443 |
| William Coster | 396 |
| George Coster | 345 |
| John Coster | 318 |
| Elizabeth Coster | 240 |
| Sarah Coster | 239 |
| Charles Coster | 233 |
| Thomas Coster | 227 |
| James Coster | 224 |
| Henry Coster | 189 |
| Jane Coster | 149 |
| Ann Coster | 137 |
| Eliza Coster | 122 |
| Emma Coster | 111 |
| Ellen Coster | 107 |
| Alice Coster | 106 |
| Edward Coster | 101 |
| Frederick Coster | 87 |
| Annie Coster | 85 |
| Samuel Coster | 71 |
| Louisa Coster | 69 |
| Albert Coster | 67 |
| Alfred Coster | 65 |
| Arthur Coster | 65 |
| Emily Coster | 64 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Caster | 83% | 8,566 |
| 2 | Coster | 100% | 7,154 |
| 3 | Acaster | 71% | 1,597 |
| 4 | Castree | 57% | 1,146 |
| 5 | Costar | 83% | 927 |
| 6 | Castor | 67% | 655 |
| 7 | Caister | 71% | 534 |
| 8 | Castro | 50% | 471 |
| 9 | Custar | 67% | 245 |
| 10 | Custer | 83% | 226 |
| 11 | Caistor | 57% | 201 |
| 12 | Acastor | 57% | 142 |
The surname Coster is the 2nd most popular variant of Caster.