| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 0 |
| Cambridgeshire | 2 |
| Channel Islands | 0 |
| Cheshire | 9 |
| Cornwall | 0 |
| Cumberland | 0 |
| Derbyshire | 0 |
| Devon | 0 |
| Dorset | 1 |
| Durham | 0 |
| Essex | 6 |
| Gloucestershire | 0 |
| Hampshire | 0 |
| Herefordshire | 0 |
| Hertfordshire | 0 |
| Huntingdonshire | 0 |
| Isle of Man | 0 |
| Kent | 2 |
| Lancashire | 22 |
| Leicestershire | 4 |
| Lincolnshire | 0 |
| London | 8 |
| Middlesex | 3 |
| Northumberland | 0 |
| Norfolk | 0 |
| Northamptonshire | 8 |
| Nottinghamshire | 0 |
| Oxfordshire | 0 |
| Rutland | 0 |
| Shropshire | 0 |
| Suffolk | 0 |
| Somerset | 6 |
| Surrey | 1 |
| Sussex | 0 |
| Staffordshire | 0 |
| Warwickshire | 2 |
| Westmorland | 0 |
| Wiltshire | 0 |
| Worcestershire | 0 |
| Yorkshire | 5 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 0 |
| Carnarvonshire | 0 |
| Carmarthenshire | 0 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 0 |
| Merionethshire | 0 |
| Montgomeryshire | 1 |
| Monmouthshire | 0 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| School | 10 |
| Private Means | 3 |
| None | 3 |
| Coal Miner Hewer | 3 |
| Confectioners | 2 |
| Motor Engine Mechanic | 2 |
| Artist Shotopher | 1 |
| Carter | 1 |
| Cotton Weaver | 1 |
| Engineer's Fitter | 1 |
| Grinder | 1 |
| Labourer | 1 |
| Labourer (general) | 1 |
| Publican | 1 |
| Ring Spinner | 1 |
| Motor Engineer | 1 |
| Iron Manger Assistant | 1 |
| Upholsterer | 1 |
| Dressmaker (apprentice) | 1 |
| General Engineer | 1 |
| Hay & Stram Dealer | 1 |
| Laber | 1 |
| Bay Baxter Bailuey | 1 |
| Journeyman Carpenter | 1 |
| Housemaid (domestic) | 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.