| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 0 |
| Cambridgeshire | 0 |
| Channel Islands | 5 |
| Cheshire | 0 |
| Cornwall | 0 |
| Cumberland | 0 |
| Derbyshire | 0 |
| Devon | 1 |
| Dorset | 0 |
| Durham | 0 |
| Essex | 5 |
| Gloucestershire | 0 |
| Hampshire | 1 |
| Herefordshire | 0 |
| Hertfordshire | 0 |
| Huntingdonshire | 0 |
| Isle of Man | 0 |
| Kent | 0 |
| Lancashire | 4 |
| Leicestershire | 0 |
| Lincolnshire | 1 |
| London | 0 |
| Middlesex | 0 |
| Northumberland | 1 |
| Norfolk | 3 |
| Northamptonshire | 1 |
| Nottinghamshire | 0 |
| Oxfordshire | 7 |
| Rutland | 0 |
| Shropshire | 0 |
| Suffolk | 0 |
| Somerset | 1 |
| Surrey | 0 |
| Sussex | 0 |
| Staffordshire | 0 |
| Warwickshire | 0 |
| Westmorland | 0 |
| Wiltshire | 0 |
| Worcestershire | 0 |
| Yorkshire | 14 |
| 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 |
| Agricultural Labourer | 3 |
| Independent | 3 |
| Gilder | 2 |
| Bonnet Maker | 1 |
| Shoemaker | 1 |
| Male Servant | 1 |
| Seaman | 1 |
| Carpenter | 1 |
| Joiner | 1 |
| Labourer | 1 |
| Name | Census Frequency |
|---|---|
| Mary Lach | 23 |
| William Lach | 19 |
| George Lach | 17 |
| Elizabeth Lach | 16 |
| John Lach | 16 |
| Thomas Lach | 13 |
| Ann Lach | 11 |
| James Lach | 9 |
| Sarah Lach | 9 |
| Charles Lach | 8 |
| Jane Lach | 7 |
| Alfred Lach | 6 |
| Arthur Lach | 5 |
| Edward Lach | 5 |
| Margaret Lach | 5 |
| Martha Lach | 5 |
| Albert Lach | 4 |
| Alice Lach | 4 |
| Florence Lach | 4 |
| Francis Lach | 4 |
| Emily Lach | 3 |
| Ethel Lach | 3 |
| Hannah Lach | 3 |
| Herbert Lach | 3 |
| Joseph Lach | 3 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Leach | 80% | 89,175 |
| 2 | Leech | 60% | 34,500 |
| 3 | Louch | 60% | 3,425 |
| 4 | Loach | 80% | 3,081 |
| 5 | Luch | 75% | 1,174 |
| 6 | Loch | 75% | 1,163 |
| 7 | Lach | 100% | 327 |
| 8 | Latch | 80% | 310 |
| 9 | Leich | 60% | 283 |
| 10 | Loche | 60% | 268 |
| 11 | Lech | 75% | 256 |
| 12 | Lauch | 80% | 116 |
The surname Lach is the 7th most popular variant of Leach.