| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 0 |
| Cambridgeshire | 0 |
| Channel Islands | 0 |
| Cheshire | 1 |
| 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 | 116 |
| Kent | 0 |
| Lancashire | 2 |
| 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 | 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 |
|---|---|
| Female Servant | 6 |
| Farmer | 4 |
| Agricultural Labourer And Fisherman | 3 |
| Agricultural Labourer | 2 |
| Independant | 2 |
| Blacksmith | 1 |
| Fisherman | 1 |
| Joiner | 1 |
| Male Servant | 1 |
| Manufacturer | 1 |
| Mason | 1 |
| Sailor's Wife | 1 |
| Shoe Maker | 1 |
| Stone Mason | 1 |
| Tailor | 1 |
| Weaver | 1 |
| Boat Builder | 1 |
| Labourer | 1 |
| Name | Census Frequency |
|---|---|
| John Costain | 190 |
| William Costain | 154 |
| Jane Costain | 124 |
| Thomas Costain | 122 |
| Margaret Costain | 117 |
| Elizabeth Costain | 98 |
| Richard Costain | 79 |
| James Costain | 65 |
| Eleanor Costain | 58 |
| Edward Costain | 50 |
| Ann Costain | 47 |
| Catherine Costain | 44 |
| Mary Costain | 38 |
| Annie Costain | 35 |
| Henry Costain | 29 |
| Sarah Costain | 26 |
| Robert Costain | 24 |
| Isabella Costain | 23 |
| Esther Costain | 22 |
| George Costain | 21 |
| Arthur Costain | 19 |
| Emily Costain | 19 |
| Alfred Costain | 18 |
| Emma Costain | 17 |
| Ellen Costain | 16 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Costin | 86% | 3,164 |
| 2 | Caston | 57% | 2,878 |
| 3 | Causton | 43% | 2,350 |
| 4 | Coston | 71% | 2,150 |
| 5 | Costain | 100% | 1,869 |
| 6 | Costen | 71% | 800 |
| 7 | Caustin | 57% | 378 |
| 8 | Castin | 71% | 171 |
| 9 | Custon | 57% | 131 |
| 10 | Custin | 71% | 122 |
| 11 | Castain | 86% | 101 |
The surname Costain is the 5th most popular variant of Costin.