| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 0 |
| Cambridgeshire | 0 |
| Channel Islands | 0 |
| Cheshire | 19 |
| Cornwall | 0 |
| Cumberland | 1 |
| Derbyshire | 2 |
| Devon | 0 |
| Dorset | 0 |
| Durham | 17 |
| Essex | 2 |
| Gloucestershire | 3 |
| Hampshire | 2 |
| Herefordshire | 0 |
| Hertfordshire | 0 |
| Huntingdonshire | 0 |
| Isle of Man | 0 |
| Kent | 0 |
| Lancashire | 211 |
| Leicestershire | 0 |
| Lincolnshire | 0 |
| London | 18 |
| Middlesex | 12 |
| Northumberland | 32 |
| Norfolk | 2 |
| Northamptonshire | 1 |
| Nottinghamshire | 0 |
| Oxfordshire | 0 |
| Rutland | 0 |
| Shropshire | 0 |
| Suffolk | 0 |
| Somerset | 0 |
| Surrey | 3 |
| Sussex | 0 |
| Staffordshire | 0 |
| Warwickshire | 23 |
| Westmorland | 0 |
| Wiltshire | 0 |
| Worcestershire | 0 |
| Yorkshire | 29 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 0 |
| Carnarvonshire | 0 |
| Carmarthenshire | 1 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 5 |
| Merionethshire | 0 |
| Montgomeryshire | 0 |
| Monmouthshire | 0 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| School | 26 |
| Cotton Weaver | 11 |
| Labourer | 5 |
| Bricklayer | 4 |
| Housekeeper | 4 |
| Weaver | 4 |
| Tailor | 3 |
| Copper Works Labourer | 3 |
| Scholar | 3 |
| No Occupation | 3 |
| Bricklayers Labourer | 2 |
| Cashier | 2 |
| Cook In Iron Works | 2 |
| Cotton Ring Spinner | 2 |
| Domestic Servant | 2 |
| Farm Labourer | 2 |
| General Labourer | 2 |
| General Servant Domestic | 2 |
| Home | 2 |
| House Keeper | 2 |
| Pork Butcher | 2 |
| Railway Clerk | 2 |
| Woolen Operative | 2 |
| Gardener | 2 |
| At Home | 2 |
| Name | Census Frequency |
|---|---|
| Mary Omalley | 145 |
| John Omalley | 94 |
| Thomas Omalley | 57 |
| Patrick Omalley | 49 |
| James Omalley | 48 |
| Bridget Omalley | 42 |
| Catherine Omalley | 41 |
| Charles Omalley | 35 |
| Annie Omalley | 32 |
| Margaret Omalley | 30 |
| William Omalley | 27 |
| Ellen Omalley | 25 |
| Michael Omalley | 25 |
| Edward Omalley | 23 |
| Peter Omalley | 22 |
| George Omalley | 21 |
| Ann Omalley | 19 |
| Austin Omalley | 19 |
| Alice Omalley | 17 |
| Martin Omalley | 16 |
| Sarah Omalley | 15 |
| Elizabeth Omalley | 13 |
| Anthony Omalley | 12 |
| Joseph Omalley | 11 |
| Jane Omalley | 10 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Molloy | 57% | 8,148 |
| 2 | Malley | 86% | 7,505 |
| 3 | Mulley | 71% | 5,197 |
| 4 | Malloy | 71% | 1,982 |
| 5 | Molley | 71% | 1,376 |
| 6 | Omalley | 100% | 1,214 |
| 7 | Mulloy | 57% | 1,141 |
| 8 | Melloy | 57% | 773 |
| 9 | Mally | 71% | 717 |
| 10 | Milley | 71% | 622 |
| 11 | O'malley | 88% | 612 |
| 12 | Melley | 71% | 523 |
| 13 | Mully | 57% | 395 |
| 14 | Melly | 57% | 356 |
| 15 | Molly | 57% | 310 |
| 16 | Mullay | 57% | 219 |
| 17 | Milly | 57% | 199 |
| 18 | Mallay | 71% | 168 |
| 19 | Mollay | 57% | 159 |
| 20 | Milloy | 57% | 147 |
| 21 | Omally | 86% | 101 |
The surname Omalley is the 6th most popular variant of Molloy.