Reference Centre, Planning
Civil Registration District Numbers, England & Wales
As of September, 1946 and onwards, Arabic numerals with capital letters were used. Example: 6B in place of 6b.


As of September, 1946 and onwards, Arabic numerals with capital letters were used. Example: 6B in place of 6b.
| Vol. Nos. | Years 1837-1851 | Vol. Nos. | Years 1852-August 1946 |
| I, II, III | parts of London & all of Middlesex | 1a, 1b, 1c | parts of London & parts of Middlesex (see also 3a) |
| IV | parts of London & all of Surrey | 1d | parts of London, parts of Kent, parts of Surrey |
| V | all of Kent | 2a | parts of Kent & parts of Surrey |
| VI | Bedfordshire, Berkshire, Buckinghamshire, Hertfordshire | 2b | parts of Hampshire (Hants) & all of Sussex |
| VII | parts of Hampshire (Hants) & all of Sussex | 2c | parts of Berkshire & parts of Hampshire (Hants) |
| VIII | parts of Hampshire (Hants), & all of Dorset and Wiltshire | 3a | parts of Berkshire, all of Buckinghamshire, all of Hertfordshire, parts of Middlesex (see also 1a, 1b, 1c) & all of Oxfordshire (Oxon) |
| IX | all of Cornwall & parts of Devonshire | 3b | all of Bedfordshire, all of Cambridgeshire, all of Huntingdonshire, parts of Nottinghamshire (see also 7b) & parts of Suffolk |
| X | parts of Devon & parts of Somerset | 4a | all of Essex & parts of Suffolk |
| XI | parts of Somerset, parts of Gloucestershire ( see also XVIII) & parts of Warwickshire (see also XVI & XVIII) | 4b | all of Norfolk |
| XII | all of Essex & parts of Suffolk | 5a | all of Dorset & all of Wiltshire |
| XIII | all of Norfolk & parts of Suffolk | 5b | all of Devonshire |
| XIV | all of counties Cambridgeshire, Huntingdonshire, Lincolnshire | 5c | all of Cornwall & all of Somersetshire |
| XV | all of the counties of Leicestershire, Northamptonshire (Northants), Nottinghamshire & Rutland | 6a | all of Gloucestershire, Herefordshire & Shropshire (Salop) |
| XVI | all of Oxfordshire (Oxon), parts of Staffordshire (see also XVII & XVIII) & parts of Warwickshire (see also XI & XVIII) | 6b | all of Staffordshire, parts of Warwickshire & parts of Worcestershire |
| XVII | parts of Staffordshire | 6c | parts of Warwickshire & parts of Worcestershire |
| XVIII | parts of Gloucestershire (see also XI), parts of Shropshire (Salop) (see also XXVI), parts of Staffordshire (see also XVI, XVII), parts of Warwickshire (see also XI, XVI) & all of Worcestershire | 6d | parts of Warwickshire only (see also 6b, 6c) |
| XIX | all of the counties of Cheshire & Derbyshire; part of Flintshire (see also XXVII) | 7a | all of the counties of Leicestershire, Lincolnshire & Rutland |
| XX | parts of Lancashire only (see also XXV) | 7b | all of Derbyshire & parts of Nottinghamshire (see also 3b) |
| XXI | parts of Lancashire & parts of Yorkshire | 8a | all of Cheshire only |
| XXII | parts of Yorkshire only | 8b | parts of Lancashire only |
| XXIII | parts of Yorkshire only | 8c | parts of Lancashire only |
| XXIV | all of Durham & parts of Yorkshire | 8d | parts of Lancashire only |
| XXV | all of Cumberland, parts of Lancashire (see also XX, XXI), all of Northumberland & all of Westmorland | 8e | parts of Lancashire only |
| XXVI | Brecknockshire, Carmarthenshire, Glamorganshire, Hereford, Monmouthshire, Pembrokeshire, Radnorshire & parts of Shropshire (Salop) (see also XVIII) | 9a | parts of Yorkshire only |
| XXVII | Anglesey, Caernarvonshire, Cardiganshire, parts of Flintshire (see also XIX), Denbighshire, Merionethshire & Montgomeryshire | 9b | parts of Yorkshire only |
| 9c | parts of Yorkshire only | ||
| 9d | parts of Yorkshire only | ||
| 10a | all of Durham only | ||
| 10b | all of Cumberland, Northumberland & Westmoreland | ||
| 11a | all of Glamorganshire, Monmouthshire & Pembrokeshire | ||
| 11b | all of Anglesey, Brecknockshire, Denbighshire, Flintshire, Montgomeryshire & Radnorshire |
| County | 1837-1851 | 1852-1946 |
| Anglesey | XXVII | 11b |
| Bedfordshire | VI | 3b |
| Berkshire | VI | 2c, 3a |
| Brecknockshire | XXVI | 11b |
| Buckinghamshire | VI | 3a |
| Caernarvonshire | XXVII | 11b |
| Cambridgeshire | XIV | 3b |
| Cardiganshire | XXVII | 11b |
| Carmarthenshire | XXVI | 11a |
| Cheshire | XIX | 8a |
| Cornwall | IX | 5c |
| Cumberland | XXV | 10b |
| Denbighshire | XXVII | 11b |
| Derbyshire | XIX | 7b |
| Devon | IX, X | 5b |
| Dorset | VIII | 5a |
| Durham | XXIV | 10a |
| Essex | XII | 4a |
| Flintshire | XIX, XXVII | 11b |
| Glamorganshire | XXVI | 11a |
| Gloucestershire | XI, XVIII | 6a |
| Hampshire | VII, VIII | 2b, 2c |
| Herefordshire | XXVI | 6a |
| Hertfordshire | VI | 3a |
| Huntingdonshire | XIV | 3b |
| Kent | V | 1d, 2a |
| Lancashire | XX, XXI, XXV | 8b, 8c, 8d, 8e |
| Leicestershire | XV | 7a |
| Lincolnshire | XIV | 7a |
| London | I, II, III, IV | 1a, 1b, 1c, 1d |
| Merionethshire | XXVII | 11b |
| Middlesex | I, II, III | 1a, 1b, 1c, 3a |
| Monmouthshire | XXVI | 11a |
| Montgomeryshire | XXVII | 11b |
| Norfolk | XIII | 4b |
| Northamptonshire | XV | 3b |
| Northumberland | XXV | 10b |
| Nottinghamshire | XV | 7b |
| Oxfordshire | XVI | 3a |
| Pembrokeshire | XXVI | 11a |
| Radnorshire | XXVI | 11b |
| Rutland | XV | 7a |
| Shropshire | XVIII, XXVI | 6a |
| Somerset | X, XI | 5c |
| Staffordshire | XVI, XVII, XVIII | 6b |
| Suffolk | XII, XIII, XIV | 3b, 4a |
| Surrey | IV | 1d, 2a |
| Sussex | VII | 2b |
| Warwickshire | XI, XVI, XVIII | 6b, 6c, 6d |
| Westmorland | XXV | 10b |
| Wiltshire | VIII | 5a |
| Worcestershire | XVIII | 6b, 6c |
| Yorkshire | XXI, XXII, XXIII, XXIV | 9a, 9b, 9c, 9d |
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