
Official Districts| District | Dates | Volume | District Number | ||||
|---|---|---|---|---|---|---|---|
| 1837to1851 | 1852to1945 | 1946to1965 | 1966to1973 | 1974to1993 | 1993onwards | ||
| Aberayron | - 1936Q2 | 27 | 11b | ||||
| Aberconwy | 1975Q3 - 2007Q2 | 25 | 845 | ||||
| Abergavenny | - 1958Q4 | 26 | 11a | 8c | |||
| Aberystwyth | - 1936Q2 | 27 | 11b | ||||
| Abingdon | - 2001Q3 | 6 | 2c | 6a | 6a | 20 | 697 |
| Acle | 1939Q1 - 1974Q1 | 4b | 4b | 4b | |||
| Alcester | - 1985Q3 | 16 | 6d | 9c | 9c | 31 | |
| Alderbury | - 1895Q2 | 8 | 5a | ||||
| Aldershot | 1932Q4 - 1974Q1 | 2c | 6b | 6b | |||
| Aldridge & Brownhills | 1966Q2 - 1974Q1 | 9b | |||||
| Aled | 1935Q4 - 1974Q1 | 11b | 8a | 8a | |||
| Alnwick | - 1936Q4 | 25 | 10b | ||||
| Alresford | - 1932Q3 | 7 | 2c | ||||
| Alston | - 1974Q1 | 25 | 10b | 1a | 1a | ||
| Alton (1837 onw) | - 2008Q1 | 7 | 2c | 6b | 6b | 20 | 489 |
| Altrincham | - 1898Q3 | 19 | 8a | ||||
| Alverstoke | - 1932Q3 | 7 | 2b | ||||
| Alyn & Deeside | 1974Q2 - 1996Q1 | 24 | 800 | ||||
| Amber Valley | 1994Q2 - 2012Q4 | 392 | |||||
| Amersham | - 1974Q1 | 6 | 3a | 6a | 6a | ||
| Amesbury | - 1936Q1 | 8 | 5a | ||||
| Amounderness | 1935Q2 - 1974Q1 | 8e | 10b | 10b | |||
| Ampthill | - 1999Q2 | 6 | 3b | 4a | 4a | 9 | 308 |
| Andover | - 2008Q1 | 7 | 2c | 6b | 6b | 20 | 490 |
| Anglesey (1837-1937) | - 1937Q1 | 27 | 11b | ||||
| Anglesey (1968-1974) | 1968Q2 - 1974Q1 | 8a | |||||
| Anglesey East | 1937Q2 - 1968Q1 | 11b | 8a | 8a | |||
| Anglesey West | 1937Q2 - 1968Q1 | 11b | 8a | 8a | |||
| Appleby | 1974Q2 - 1984Q2 | 1 | |||||
| Ardudwy | 1974Q2 - 2009Q2 | 25 | 840 | ||||
| Ashbourne | - 2012Q4 | 19 | 7b | 3a | 3a | 6 | 390 |
| Ashby de la Zouch | - 1949Q3 | 15 | 7a | 3a | |||
| Ashford (1941-1998) | 1941Q2 - 1998Q1 | 2a | 5b | 5f | 16 | 558 | |
| Ashton & Oldham (1837-48) | - 1848Q1 | 20 | |||||
| Ashton (1937-74) | 1937Q2 - 1974Q1 | 8d | 10b | 10b | |||
| Ashton under Lyne (1848-1937) | 1848Q2 - 1937Q1 | 20 | 8d | ||||
| Askrigg | - 1868Q4 | 24 | 9d | ||||
| Aston (1837-1924) | - 1924Q3 | 16 | 6d | ||||
| Atcham | - 1935Q3 | 18 | 6a | ||||
| Atherstone | - 1974Q1 | 16 | 6d | 9c | 9c | ||
| Auckland | - 1938Q2 | 24 | 10a | ||||
| Axbridge | - 1936Q1 | 10 | 5c | ||||
| Axminster | - 1936Q2 | 10 | 5b | ||||
| Aylesbury | - 1985Q1 | 6 | 3a | 6a | 6a | 19 | |
| Aylesbury Vale | 1985Q2 - 2007Q2 | 19 | 324 | ||||
| Aylsham | - 1938Q4 | 13 | 4b | ||||
| Aysgarth | 1869Q1 - 1936Q3 | 9d | |||||
| Bakewell (1839 onw) | 1839Q1 - 2012Q4 | 19 | 7b | 3a | 3a | 6 | 391 |
| Bala | - 1935Q3 | 27 | 11b | ||||
| Banbury | - 2001Q3 | 16 | 3a | 6b | 6b | 20 | 698 |
| Bangor | - 2009Q2 | 27 | 11b | 8a | 8a | 25 | 841 |
| Barking & Dagenham | 1980Q2 -   | 11 | 218 | ||||
| Barking (1965-1980) | 1965Q2 - 1980Q1 | 5a | 11 | ||||
| Barkston Ash | 1947Q1 - 1974Q1 | 2d | 2d | ||||
| Barnet |   | 6 | 3a | 5a | 5a | 11 | 219 |
| Barnsley | 1850Q2 -   | 22 | 9c | 2b | 2b | 3 | 041 |
| Barnstaple | - 1998Q1 | 10 | 5b | 7a | 7a | 21 | 404 |
| Barrow in Furness (1876 onw) | 1876Q3 - 2011Q4 | 8e | 10b | 10b | 1 | 373 | |
| Barrow upon Soar | - 1949Q3 | 15 | 7a | 3a | |||
| Barton (1934-1980) | 1934Q4 - 1980Q1 | 8c | 10b | 10b | 39 | ||
| Barton Regis | 1877Q2 - 1904Q4 | 6a | |||||
| Barton upon Irwell (1850-1934) | 1850Q1 - 1934Q3 | 20 | 8c | ||||
| Barton, Worsley & Flixton | 1839Q1 - 1841Q1 | 20 | |||||
| Basford | - 2012Q1 | 15 | 7b | 3c | 3c | 8 | 685 |
| Basildon | 1974Q2 - 1974Q2 | 9 | |||||
| Basingstoke | - 2000Q4 | 7 | 2c | 6b | 6b | 20 | 491 |
| Bath | - 1996Q1 | 11 | 5c | 7c | 7c | 22 | 300 |
| Bath & North East Somerset | 1996Q2 -   | 300 | |||||
| Bathavon | 1936Q2 - 1974Q1 | 5c | 7c | 7c | |||
| Battersea (1930-1965) | 1930Q2 - 1965Q1 | 1d | 5c | ||||
| Battle | - 1977Q1 | 7 | 2b | 5h | 5h | 18 | |
| Beaminster | - 1937Q1 | 8 | 5a | ||||
| Bedale | 1839Q3 - 1936Q3 | 24 | 9d | ||||
| Bedford | - 1999Q2 | 6 | 3b | 4a | 4a | 9 | 309 |
| Bedminster | - 1899Q1 | 11 | 5c | ||||
| Bedwellty | 1861Q3 - 1974Q1 | 11a | 8c | 8c | |||
| Belford | - 1936Q4 | 25 | 10b | ||||
| Bellingham | - 1936Q4 | 25 | 10b | ||||
| Belper | - 1994Q2 | 19 | 7b | 3a | 3a | 6 | 392 |
| Berkhampstead (1837-1939) | - 1939Q3 | 6 | 3a | ||||
| Berkhamsted (1939-74) | 1939Q4 - 1974Q1 | 3a | 4b | 4b | |||
| Bermondsey (1837-69) | - 1869Q4 | 4 | 1d | ||||
| Bermondsey (1934 onw) | 1934Q2 - 1965Q1 | 1d | 5c | ||||
| Berwick | - 1936Q4 | 25 | 10b | ||||
| Bethnal Green | - 1965Q4 | 2 | 1c | 5c | 5a | ||
| Beverley (1837-1937) | - 1937Q1 | 23 | 9d | ||||
| Beverley (1974 onw) | 1974Q2 - 2002Q2 | 7 | 542 | ||||
| Bexley | 1965Q2 -   | 5a | 11 | 220 | |||
| Bicester | - 1932Q3 | 16 | 3a | ||||
| Bideford | - 1998Q1 | 10 | 5b | 7a | 7a | 21 | 405 |
| Biggleswade | - 1999Q2 | 6 | 3b | 4a | 4a | 9 | 310 |
| Billericay | - 1939Q2 | 12 | 4a | ||||
| Billesdon | - 1949Q3 | 15 | 7a | 3a | |||
| Bilston | 1935Q2 - 1966Q1 | 6b | 9b | 9b | |||
| Bingham | - 1974Q1 | 15 | 7b | 3c | 3c | ||
| Birkenhead (1861-1998) | 1861Q3 - 1998Q1 | 8a | 10a | 10a | 37 | 037 | |
| Birmingham (1837-1924) | - 1924Q3 | 16 | 6d | ||||
| Birmingham (1932 onw) | 1932Q4 -   | 6d | 9c | 9c | 32 | 061 | |
| Birmingham North | 1924Q3 - 1932Q3 | 6d | |||||
| Birmingham South | 1924Q3 - 1932Q3 | 6d | |||||
| Bishops Stortford | - 2008Q1 | 6 | 3a | 4b | 4b | 10 | 528 |
| Bishopsgate | - 1838Q1 | 2 | |||||
| Blaby | - 1949Q3 | 15 | 7a | 3a | |||
| Blackburn | - 1998Q1 | 21 | 8e | 10b | 10b | 40 | 580 |
| Blackpool & Fylde | 1974Q2 - 1998Q1 | 40 | 581 | ||||
| Blackpool (1936-1974) | 1936Q4 - 1974Q1 | 8e | 10b | 10b | |||
| Blaenau Gwent | 1974Q2 -   | 28 | 833 | ||||
| Blandford | - 1956Q2 | 8 | 5a | 6a | |||
| Blean | - 1941Q1 | 5 | 2a | ||||
| Blofield | - 1938Q4 | 13 | 4b | ||||
| Blyth | 1935Q2 - 1983Q3 | 4a | 4b | 4b | 10 | ||
| Blything | - 1935Q1 | 13 | 4a | ||||
| Bodmin | - 2007Q2 | 9 | 5c | 7a | 7a | 21 | 354 |
| Bolton |   | 21 | 8c | 10b | 10b | 38 | 002 |
| Bootle Cul | - 1939Q1 | 25 | 10b | ||||
| Bootle Lan | 1934Q4 - 1980Q1 | 8b | 10b | 10b | 37 | ||
| Border | 1937Q4 - 1974Q1 | 10b | 1a | 1a | |||
| Bosmere | - 1935Q1 | 12 | 4a | ||||
| Boston | - 2003Q1 | 14 | 7a | 3b | 3b | 7 | 610 |
| Bourne & South Kesteven | 1934Q1 - 1974Q1 | 7a | 3b | 3b | |||
| Bourne (1837-1933) | - 1933Q4 | 14 | 7a | ||||
| Bourne (1974 onw) | 1974Q2 - 2003Q1 | 7 | 611 | ||||
| Bournemouth & Christchurch | 1925Q3 - 1932Q3 | 2b | |||||
| Bournemouth (1932 onw) | 1932Q4 - 2019Q1 | 2b | 6b | 6b | 23 | 427 | |
| Brackley | - 2001Q3 | 15 | 3b | 3b | 3b | 7 | 666 |
| Bracknell | 1974Q2 - 1998Q1 | 19 | 318 | ||||
| Bradfield | - 1937Q1 | 6 | 2c | ||||
| Bradford | - 2008Q3 | 23 | 9b | 2b | 2b | 4 | 081 |
| Bradford upon Avon | - 1936Q1 | 8 | 5a | ||||
| Braintree | - 2010Q1 | 12 | 4a | 4a | 4a | 9 | 465 |
| Bramham (1862-69) | 1862Q2 - 1869Q3 | 9c | |||||
| Bramley & Holbeck | 1925Q4 - 1928Q4 | 9b | |||||
| Bramley (1863-1925) | 1863Q1 - 1925Q3 | 9b | |||||
| Brampton | - 1937Q3 | 25 | 10b | ||||
| Brecknock | - 2009Q1 | 26 | 11b | 8a | 8a | 26 | 866 |
| Brent | 1965Q2 -   | 5a | 11 | 221 | |||
| Brentford | - 1947Q3 | 3 | 3a | 5e | |||
| Brentwood | 1939Q3 - 2010Q1 | 4a | 4a | 4a | 9 | 466 | |
| Bridge | - 1974Q1 | 5 | 2a | 5b | 5f | ||
| Bridgend (1996 onw) | 1996Q2 -   | 861 | |||||
| Bridgend (to 1970) | - 1970Q3 | 26 | 11a | 8b | 8b | ||
| Bridgnorth | - 2005Q3 | 18 | 6a | 9a | 9a | 30 | 710 |
| Bridgwater | - 1974Q1 | 10 | 5c | 7c | 7c | ||
| Bridlington (1837-1937) | - 1937Q1 | 23 | 9d | ||||
| Bridlington (1974 onw) | 1974Q2 - 2002Q2 | 7 | 544 | ||||
| Bridport (1959 to 1997) | 1959Q1 - 1997Q1 | 7c | 7c | 23 | 428 | ||
| Bridport (to 1958) | - 1958Q4 | 8 | 5a | 6a | |||
| Brighton | - 1998Q4 | 7 | 2b | 5h | 5h | 18 | 452 |
| Bristol |   | 11 | 6a | 7b | 7b | 22 | 301 |
| Brixworth | - 1974Q1 | 15 | 3b | 3b | 3b | ||
| Bromley |   | 5 | 2a | 5b | 5a | 11 | 222 |
| Bromsgrove | - 2006Q1 | 18 | 6c | 9d | 9d | 29 | 512 |
| Bromyard | - 2008Q1 | 26 | 6a | 9a | 9a | 29 | 513 |
| Broxbourne | 1974Q2 - 2008Q1 | 10 | 529 | ||||
| Buckingham | - 1935Q1 | 6 | 3a | ||||
| Bucklow | 1898Q4 - 1974Q1 | 8a | 10a | 10a | |||
| Buckrose | 1937Q2 - 1974Q1 | 9d | 2a | 2a | |||
| Builth | - 1987Q4 | 26 | 11b | 8a | 8a | 26 | |
| Bullingdon | 1964Q4 - 2001Q3 | 6b | 6b | 20 | 699 | ||
| Bulmer | 1936Q4 - 1974Q1 | 9d | 1b | 1b | |||
| Buntingford (1837 only) | - 1837Q4 | 6 | |||||
| Burnley | - 1974Q1 | 21 | 8e | 10b | 10b | ||
| Burnley & Pendle | 1974Q2 - 2005Q2 | 40 | 582 | ||||
| Burton upon Trent | - 1974Q1 | 17 | 6b | 9b | 9b | ||
| Bury |   | 21 | 8c | 10b | 10b | 38 | 003 |
| Bury St Edmunds | - 2010Q4 | 13 | 4a | 4b | 4b | 10 | 742 |
| Caerleon | 1936Q3 - 1974Q1 | 11a | 8c | 8c | |||
| Caernarfon (1974 onw) | 1974Q2 - 2009Q2 | 25 | 842 | ||||
| Caernarvon (1937-1974) | 1937Q2 - 1974Q1 | 11b | 8a | 8a | |||
| Caerphilly | 1996Q2 -   | 863 | |||||
| Caistor | - 2003Q1 | 14 | 7a | 3b | 3b | 7 | 612 |
| Calder | 1938Q2 - 1974Q1 | 9a | 2b | 2b | |||
| Calne | - 1936Q1 | 8 | 5a | ||||
| Camberwell | - 1991Q3 | 4 | 1d | 5c | 5a | 11 | |
| Camborne-Redruth | 1974Q2 - 2007Q2 | 21 | 355 | ||||
| Cambridge (1837-1935) | - 1935Q1 | 14 | 3b | ||||
| Cambridge (1974 onw) | 1974Q2 - 2007Q3 | 9 | 331 | ||||
| Cambridgeshire (1935-1974) | 1935Q2 - 1974Q1 | 3b | 4a | 4a | |||
| Camden | 1977Q4 -   | 14 | 250 | ||||
| Camelford | - 1995Q2 | 9 | 5c | 7a | 7a | 21 | 356 |
| Cannock | 1877Q2 - 1974Q1 | 6b | 9b | 9b | |||
| Cannock Chase | 1974Q2 - 2008Q3 | 30 | 730 | ||||
| Canterbury | - 1998Q1 | 5 | 2a | 5b | 5f | 16 | 560 |
| Cardiff (1837-1974) | - 1974Q1 | 26 | 11a | 8b | 8b | ||
| Cardiff (1996 onw) | 1996Q2 -   | 890 | |||||
| Cardigan | - 1936Q2 | 27 | 11b | ||||
| Cardiganshire Central | 1936Q3 - 2013Q1 | 11b | 8a | 8a | 24 | 815 | |
| Cardiganshire North | 1936Q3 - 2013Q1 | 11b | 8a | 8a | 24 | 816 | |
| Cardiganshire South | 1936Q3 - 2013Q1 | 11b | 8a | 8a | 24 | 817 | |
| Carlisle | - 2011Q4 | 25 | 10b | 1a | 1a | 1 | 375 |
| Carmarthen | - 2007Q1 | 26 | 11a | 8a | 8a | 24 | 818 |
| Carnarvon | - 1937Q1 | 27 | 11b | ||||
| Castle Ward | - 1936Q4 | 25 | 10b | ||||
| Castleford | 1862Q2 - 1867Q4 | 9c | |||||
| Catherington | - 1932Q3 | 7 | 2c | ||||
| Caxton | - 1935Q1 | 14 | 3b | ||||
| Central Cleveland | 1974Q2 - 1996Q1 | 3 | 348 | ||||
| Cerne | - 1837Q4 | 8 | |||||
| Chailey | - 1837Q4 | 7 | |||||
| Chanctonbury | 1935Q2 - 1974Q1 | 2b | 5h | 5h | |||
| Chapel en le Frith | 1838Q1 - 1974Q1 | 19 | 7b | 10a | 10a | ||
| Chard | - 1974Q1 | 10 | 5c | 7c | 7c | ||
| Chatham | 1941Q2 - 1998Q1 | 2a | 5b | 5f | 16 | 561 | |
| Cheadle | - 1974Q1 | 17 | 6b | 9b | 9b | ||
| Chelmsford | - 2010Q1 | 12 | 4a | 4a | 4a | 9 | 468 |
| Chelsea (1837 only) | - 1837Q4 | 3 | |||||
| Chelsea (1841-1981) | 1841Q3 - 1981Q2 | 3 | 1a | 5c | 5a | 11 | |
| Cheltenham | - 2006Q1 | 11 | 6a | 7b | 7b | 22 | 479 |
| Chepstow | - 1968Q1 | 26 | 11a | 8c | 8c | ||
| Chertsey | - 1934Q1 | 4 | 2a | ||||
| Cheshire East | 1998Q2 - 2007Q2 | 344 | |||||
| Chester | 1870Q1 - 1974Q1 | 8a | 10a | 10a | |||
| Chester & Ellesmere Port | 1974Q2 - 1998Q1 | 35 | 340 | ||||
| Chester le Street | - 1938Q2 | 24 | 10a | ||||
| Chesterfield | - 2012Q4 | 19 | 7b | 3a | 3a | 6 | 393 |
| Chesterton | - 1935Q1 | 14 | 3b | ||||
| Chichester | - 2010Q1 | 7 | 2b | 5h | 5h | 18 | 779 |
| Chiltern & Beaconsfield | 1974Q2 - 1988Q2 | 19 | |||||
| Chiltern & South Bucks | 1988Q2 - 1998Q4 | 19 | 325 | ||||
| Chippenham | - 2008Q1 | 8 | 5a | 7c | 7c | 23 | 788 |
| Chipping Norton | - 1982Q1 | 16 | 3a | 6b | 6b | 20 | |
| Chipping Sodbury | - 1937Q1 | 11 | 6a | ||||
| Chorley | - 2005Q2 | 21 | 8e | 10c | 10c | 40 | 583 |
| Chorlton | - 1924Q4 | 20 | 8c | ||||
| Christchurch (1837-1925) | - 1925Q2 | 8 | 2b | ||||
| Christchurch (1932-1974) | 1932Q4 - 1974Q1 | 2b | 6b | 6b | |||
| Church Stretton | - 1935Q3 | 18 | 6a | ||||
| Cirencester | - 2006Q1 | 11 | 6a | 7b | 7b | 22 | 480 |
| City of Westminster | 1933Q4 - 1965Q1 | 1a | 5c | ||||
| Claro | 1947Q1 - 1998Q3 | 2c | 2c | 2 | 650 | ||
| Cleethorpes | 1938Q2 - 1974Q1 | 7a | 3b | 3b | |||
| Cleobury Mortimer | - 1935Q3 | 18 | 6a | ||||
| Clerkenwell | - 1869Q2 | 3 | 1b | ||||
| Cleveland | 1936Q4 - 1974Q1 | 9d | 1b | 1b | |||
| Clifton | - 1877Q1 | 11 | 6a | ||||
| Clitheroe | - 1974Q1 | 21 | 8e | 10c | 10c | ||
| Clun | - 2005Q3 | 18 | 6a | 9a | 9a | 30 | 711 |
| Clutton | - 1936Q1 | 11 | 5c | ||||
| Coalville | 1949Q4 - 1999Q4 | 3a | 3a | 6 | 598 | ||
| Cockermouth | - 2011Q4 | 25 | 10b | 1a | 1a | 1 | 376 |
| Colchester | - 2010Q1 | 12 | 4a | 4a | 4a | 9 | 469 |
| Colwyn | 1974Q2 - 2007Q2 | 24 | 802 | ||||
| Congleton | - 1937Q1 | 19 | 8a | ||||
| Congleton & Crewe | 1974Q2 - 1991Q2 | 35 | |||||
| Conway (to 1937) | - 1937Q1 | 27 | 11b | ||||
| Conway Valley | 1937Q2 - 1974Q1 | 11b | 8a | 8a | |||
| Cookham | - 1896Q1 | 6 | 2c | ||||
| Corby | 1974Q2 - 2010Q3 | 7 | 667 | ||||
| Corwen | - 1935Q3 | 27 | 11b | ||||
| Cosford | - 1938Q2 | 12 | 4a | ||||
| Coventry |   | 16 | 6d | 9c | 9c | 33 | 063 |
| Cranbrook | - 1941Q1 | 5 | 2a | ||||
| Crawley | 1974Q2 - 2010Q1 | 18 | 780 | ||||
| Crediton | - 1936Q2 | 10 | 5b | ||||
| Crewe (1937-1974) | 1937Q2 - 1974Q1 | 8a | 10a | 10a | |||
| Crickhowell | - 1974Q1 | 26 | 11b | 8a | 8a | ||
| Cricklade | - 1936Q1 | 8 | 5a | ||||
| Crosby (1934-1980) | 1934Q4 - 1980Q1 | 8b | 10c | 10c | 37 | ||
| Croydon |   | 4 | 2a | 5g | 5a | 11 | 225 |
| Cuckfield | - 1980Q3 | 7 | 2b | 5h | 5h | 18 | |
| Dacorum | 1974Q2 - 2008Q1 | 10 | 530 | ||||
| Darlington |   | 24 | 10a | 1a | 1a | 1 | 436 |
| Dartford | - 1979Q4 | 5 | 2a | 5b | 5f | 16 | |
| Darwen | 1937Q1 - 1974Q1 | 8e | 10c | 10c | |||
| Daventry | - 2010Q3 | 15 | 3b | 3b | 3b | 7 | 668 |
| De Meirionydd | 1974Q2 -   | 25 | 843 | ||||
| Deben | 1935Q2 - 2010Q4 | 4a | 4b | 4b | 10 | 743 | |
| Delyn | 1974Q2 - 1996Q1 | 24 | 803 | ||||
| Denbighshire North | 1996Q2 - 2018Q2 | 811 | |||||
| Denbighshire South | 1996Q2 - 2018Q2 | 805 | |||||
| Deptford | 1930Q2 - 1966Q2 | 1d | 5c | 5b | |||
| Depwade | - 2011Q1 | 13 | 4b | 4b | 4b | 10 | 632 |
| Derby |   | 19 | 7b | 3a | 3a | 6 | 394 |
| Devizes | - 1998Q3 | 8 | 5a | 7c | 7c | 23 | 789 |
| Devon Central | 1936Q3 - 1974Q1 | 5b | 7a | 7a | |||
| Devonport | 1898Q4 - 1937Q2 | 5b | |||||
| Dewsbury | - 2012Q3 | 22 | 9b | 2b | 2b | 4 | 088 |
| Docking | - 1938Q4 | 13 | 4b | ||||
| Dolgelly | - 1935Q3 | 27 | 11b | ||||
| Don Valley | 1938Q3 - 1974Q1 | 9c | 2b | 2b | |||
| Doncaster |   | 22 | 9c | 2b | 2b | 3 | 042 |
| Dorchester | - 1949Q2 | 8 | 5a | 6a | |||
| Dorking | - 1934Q1 | 4 | 2a | ||||
| Dover | - 1998Q1 | 5 | 2a | 5b | 5f | 16 | 563 |
| Downham | - 2011Q1 | 13 | 4b | 4b | 4b | 10 | 633 |
| Driffield | - 1937Q1 | 23 | 9d | ||||
| Droitwich | - 2006Q1 | 18 | 6c | 9d | 9d | 29 | 514 |
| Droxford | - 2008Q1 | 7 | 2c | 6b | 6b | 20 | 492 |
| Dudley (1913-35) | 1913Q1 - 1935Q1 | 6b | |||||
| Dudley (1935-66) | 1935Q2 - 1966Q1 | 6c | 9d | 9d | |||
| Dudley (1966 onw) | 1966Q2 -   | 9b | 33 | 065 | |||
| Dudley (to 1912) | - 1912Q4 | 18 | 6c | ||||
| Dulverton (1837 only) | - 1837Q4 | 10 | |||||
| Dulverton (1855-1936) | 1855Q1 - 1936Q1 | 5c | |||||
| Dunmow | - 1967Q4 | 12 | 4a | 4a | 4a | ||
| Dunstable (1964-1999) | 1964Q2 - 1999Q2 | 4a | 4a | 9 | 311 | ||
| Durham (1837-1938) | - 1938Q2 | 24 | 10a | ||||
| Durham Central & South Eastern | 1971Q4 - 1974Q1 | 1a | |||||
| Durham Central (1938-1971) | 1938Q3 - 1971Q3 | 10a | 1a | 1a | |||
| Durham Central (1974 onw) | 1974Q2 - 2004Q1 | 1 | 438 | ||||
| Durham Eastern | 1938Q3 - 2006Q2 | 10a | 1a | 1a | 1 | 439 | |
| Durham North Eastern | 1938Q1 - 1974Q1 | 10a | 1a | 1a | |||
| Durham North Western | 1938Q3 - 1974Q1 | 10a | 1a | 1a | |||
| Durham Northern | 1938Q3 - 2004Q1 | 10a | 1a | 1a | 1 | 440 | |
| Durham South Eastern | 1938Q3 - 1971Q3 | 10a | 1a | 1a | |||
| Durham South Western | 1938Q3 - 2000Q1 | 10a | 1a | 1a | 1 | 441 | |
| Durham Western | 1938Q3 - 2006Q2 | 10a | 1a | 1a | 1 | 442 | |
| Dursley | - 1937Q1 | 11 | 6a | ||||
| Dwyfor | 1996Q4 - 2009Q2 | 853 | |||||
| Dyffryn Conwy | 1974Q2 - 1975Q2 | 25 | |||||
| Ealing | 1947Q4 -   | 5e | 5b | 12 | 226 | ||
| Easington | - 1938Q2 | 24 | 10a | ||||
| Easingwold | - 1936Q3 | 24 | 9d | ||||
| East Ashford | - 1941Q1 | 5 | 2a | ||||
| East Cleveland | 1974Q2 - 1996Q1 | 3 | 349 | ||||
| East Dereham | 1939Q1 - 2011Q1 | 4b | 4b | 4b | 10 | 634 | |
| East Dorset | 1997Q2 - 2005Q4 | 426 | |||||
| East Elloe | 1936Q1 - 2003Q1 | 7a | 3b | 3b | 7 | 613 | |
| East Glamorgan | 1935Q1 - 1974Q1 | 11a | 8b | 8b | |||
| East Grinstead | - 1935Q1 | 7 | 2b | ||||
| East Ham | 1935Q4 - 1967Q4 | 4a | 5a | 5b | |||
| East London | 1838Q2 - 1869Q4 | 2 | 1c | ||||
| East Preston | 1870Q1 - 1935Q1 | 2b | |||||
| East Retford | - 2005Q2 | 15 | 7b | 3c | 3c | 8 | 686 |
| East Staffordshire | 1974Q2 - 2008Q3 | 30 | 731 | ||||
| East Stonehouse | - 1937Q2 | 9 | 5b | ||||
| East Ward | - 1937Q3 | 25 | 10b | ||||
| Eastbourne | - 2008Q2 | 7 | 2b | 5h | 5h | 18 | 454 |
| Easthampstead (1837-1937) | - 1937Q1 | 6 | 2c | ||||
| Easthampstead (1967-74) | 1967Q2 - 1974Q1 | 6a | |||||
| Eastleigh | 1927Q2 - 1932Q3 | 2c | |||||
| Eastry | - 1941Q1 | 5 | 2a | ||||
| Ecclesall Bierlow | - 1935Q1 | 22 | 9c | ||||
| Ecclesfield (to 1850) | - 1850Q1 | 22 | |||||
| Edmonton | - 1965Q1 | 3 | 3a | 5e | |||
| Elham | - 1941Q1 | 5 | 2a | ||||
| Ellesmere | - 1935Q3 | 18 | 6a | ||||
| Elstree & Potters Bar | 1965Q2 - 1996Q1 | 4b | 10 | 531 | |||
| Ely | - 2007Q3 | 14 | 3b | 4a | 4a | 9 | 332 |
| Enfield | 1965Q2 -   | 5b | 12 | 227 | |||
| Epping | - 1974Q1 | 12 | 4a | 5a | 4a | ||
| Epping Forest | 1974Q2 - 2010Q1 | 9 | 470 | ||||
| Epsom | - 1934Q1 | 4 | 2a | ||||
| Erewash | 1997Q2 - 2012Q4 | 396 | |||||
| Erpingham | - 1938Q4 | 13 | 4b | ||||
| Essex South Western | 1935Q4 - 1965Q1 | 4a | 5a | ||||
| Eton | - 1974Q1 | 6 | 3a | 6a | 6a | ||
| Evesham | - 2006Q1 | 18 | 6c | 9d | 9d | 29 | 515 |
| Ewecross | 1947Q1 - 1998Q3 | 2c | 2c | 2 | 651 | ||
| Exeter | - 2007Q1 | 10 | 5b | 7a | 7a | 21 | 408 |
| Exmoor | 1936Q2 - 1974Q1 | 5c | 7c | 7c | |||
| Fakenham | 1939Q1 - 2011Q1 | 4b | 4b | 4b | 10 | 635 | |
| Falmouth | - 2007Q2 | 9 | 5c | 7a | 7a | 21 | 359 |
| Fareham | - 1932Q3 | 7 | 2b | ||||
| Faringdon | - 1937Q1 | 6 | 2c | ||||
| Farnborough (1847-69) | 1847Q1 - 1869Q2 | 4 | 2a | ||||
| Farnham | - 1934Q1 | 4 | 2a | ||||
| Farnworth (1935-1974) | 1935Q4 - 1974Q1 | 8c | 10c | 10c | |||
| Farringdon (1837-8) | - 1838Q1 | 2 | |||||
| Faversham | - 1941Q1 | 5 | 2a | ||||
| Fenland | 1980Q3 - 2007Q3 | 9 | 338 | ||||
| Ffestiniog | - 1935Q3 | 27 | 11b | ||||
| Finsbury (see Holborn before 1930) | 1930Q2 - 1965Q1 | 1b | 5c | ||||
| Fleetwood | 1974Q2 - 1982Q1 | 40 | |||||
| Flegg | - 1923Q4 | 13 | 4b | ||||
| Flintshire East | 1996Q2 - 2005Q2 | 800 | |||||
| Flintshire West | 1996Q2 - 2005Q2 | 803 | |||||
| Foleshill | - 1932Q1 | 16 | 6d | ||||
| Folkestone (1941-1974) | 1941Q2 - 1974Q1 | 2a | 5b | 5f | |||
| Forden | 1870Q3 - 1935Q4 | 11b | |||||
| Fordingbridge | - 1932Q3 | 8 | 2b | ||||
| Forehoe | - 1938Q4 | 13 | 4b | ||||
| Forest of Dean | 1937Q2 - 2006Q1 | 6a | 7b | 7b | 22 | 482 | |
| Freebridge Lynn | - 1938Q4 | 13 | 4b | ||||
| Frome | - 1974Q1 | 10 | 5c | 7c | 7c | ||
| Fulham | 1875Q2 - 2000Q4 | 1a | 5c | 5b | 12 | 228 | |
| Fylde | - 1974Q1 | 21 | 8e | 10c | 10c | ||
| Gainsborough | - 2003Q1 | 14 | 7a | 3b | 3b | 7 | 615 |
| Garstang | - 1998Q1 | 21 | 8e | 10c | 10c | 40 | 585 |
| Gateshead |   | 24 | 10a | 1a | 1a | 2 | 051 |
| Gipping | 1935Q2 - 1983Q1 | 4a | 4b | 4b | 10 | ||
| Gipping & Hartismere | 1983Q2 - 2010Q4 | 10 | 745 | ||||
| Glanford Brigg | - 1938Q3 | 14 | 7a | ||||
| Glendale | - 1936Q4 | 25 | 10b | ||||
| Glossop | 1898Q2 - 1974Q1 | 7b | 10a | 10a | |||
| Gloucester (1837-1937) | - 1937Q1 | 11 | 6a | ||||
| Gloucester (1974 onw) | 1974Q2 - 2006Q1 | 22 | 483 | ||||
| Gloucester City | 1937Q2 - 1974Q1 | 6a | 7b | 7b | |||
| Gloucester Rural | 1937Q2 - 1974Q1 | 6a | 7b | 7b | |||
| Glyndwr | 1974Q2 - 1996Q1 | 24 | 805 | ||||
| Godstone | - 1934Q1 | 4 | 2a | ||||
| Goole | - 2002Q2 | 23 | 9c | 2b | 2b | 7 | 547 |
| Gosport | 1932Q4 - 1974Q1 | 2b | 6b | 6b | |||
| Gower | 1858Q3 - 1934Q4 | 11a | |||||
| Grantham & West Kesteven | 1934Q1 - 1974Q1 | 7a | 3b | 3b | |||
| Grantham (1837-1933) | - 1933Q4 | 14 | 7a | ||||
| Grantham (1974 onw) | 1974Q2 - 2003Q1 | 7 | 616 | ||||
| Gravesend (1837-1941) | - 1941Q1 | 5 | 2a | ||||
| Gravesend (1980 onw) | 1980Q1 - 2003Q1 | 16 | 562 | ||||
| Great Boughton | - 1869Q4 | 19 | 8a | ||||
| Great Ouseburn | 1854Q3 - 1946Q4 | 9a | 2b | ||||
| Great Yarmouth (1939 onw) | 1939Q1 - 2011Q1 | 4b | 4b | 4b | 10 | 636 | |
| Greenwich |   | 5 | 1d | 5c | 5b | 12 | 229 |
| Grimsby | 1897Q2 - 1996Q1 | 7a | 3b | 3b | 7 | 548 | |
| Guildford | - 1934Q1 | 4 | 2a | ||||
| Guiltcross | - 1902Q1 | 13 | 4b | ||||
| Guisborough | - 1936Q3 | 24 | 9d | ||||
| Hackney |   | 3 | 1b | 5c | 5b | 12 | 230 |
| Hailsham | - 1976Q1 | 7 | 2b | 5h | 5h | 18 | |
| Halifax | - 2002Q4 | 22 | 9a | 2b | 2b | 4 | 084 |
| Halstead | - 1972Q4 | 12 | 4a | 4a | 4a | ||
| Halton | 1974Q2 -   | 35 | 343 | ||||
| Haltwhistle | - 1936Q4 | 25 | 10b | ||||
| Hambledon | - 1934Q1 | 4 | 2a | ||||
| Hammersmith | 1915Q3 - 2000Q4 | 1a | 5c | 5b | 12 | 231 | |
| Hampstead | 1848Q3 - 1977Q3 | 3 | 1a | 5c | 5b | 12 | |
| Hardingstone | - 1923Q4 | 15 | 3b | ||||
| Haringey | 1965Q2 -   | 5b | 12 | 233 | |||
| Harlow | 1974Q2 - 2010Q1 | 9 | 472 | ||||
| Harrow (1947 onw) | 1947Q4 -   | 5f | 5b | 12 | 232 | ||
| Hartismere | - 1983Q1 | 13 | 4a | 4b | 4b | 10 | |
| Hartlepool (1859-1938) | 1859Q2 - 1938Q2 | 10a | |||||
| Hartlepool (1967-74) | 1967Q2 - 1974Q1 | 1a | |||||
| Hartlepool (1996 onw) | 1996Q2 -   | 351 | |||||
| Hartley Wintney | - 1932Q3 | 7 | 2c | ||||
| Harwich | 1939Q3 - 1957Q3 | 4a | 4a | ||||
| Haslingden | - 1974Q1 | 21 | 8e | 10c | 10c | ||
| Hastings & Rother | 1977Q2 - 2008Q2 | 18 | 456 | ||||
| Hastings (1837-1977) | - 1977Q1 | 7 | 2b | 5h | 5h | 18 | |
| Hatfield | - 2008Q1 | 6 | 3a | 4b | 4b | 10 | 532 |
| Havant | - 1932Q3 | 7 | 2b | ||||
| Haverfordwest | - 2003Q1 | 26 | 11a | 8c | 8c | 24 | 819 |
| Havering | 1965Q2 -   | 5c | 13 | 234 | |||
| Hawarden | 1903Q1 - 1974Q1 | 11b | 8a | 8a | |||
| Hay | - 2009Q1 | 26 | 11b | 8a | 8a | 26 | 870 |
| Hayfield | 1838Q1 - 1938Q1 | 19 | 7b | ||||
| Haywards Heath | 1980Q4 - 2010Q1 | 18 | 781 | ||||
| Headington | - 1932Q4 | 16 | 3a | ||||
| Helmsley | - 1936Q3 | 24 | 9d | ||||
| Helston | - 1936Q2 | 9 | 5c | ||||
| Hemel Hempstead | - 1974Q1 | 6 | 3a | 4b | 4b | ||
| Hemsworth | 1850Q3 - 1974Q1 | 22 | 9c | 2b | 2b | ||
| Hendon (1837-1947) | - 1947Q3 | 3 | 3a | 5f | |||
| Hendon (1947-1999) | 1947Q4 - 1999Q1 | 5e | 5c | 13 | 235 | ||
| Henley | - 2001Q3 | 16 | 3a | 6b | 6b | 20 | 701 |
| Henstead | - 1938Q4 | 13 | 4b | ||||
| Hereford | - 2008Q1 | 26 | 6a | 9a | 9a | 29 | 516 |
| Hertford | - 1974Q1 | 6 | 3a | 4b | 4b | ||
| Hertford & Ware | 1974Q2 - 2008Q1 | 10 | 533 | ||||
| Hexham | - 1936Q4 | 25 | 10b | ||||
| Heywood | 1934Q2 - 1974Q1 | 8c | 10c | 10c | |||
| High Peak (1837 only) | - 1837Q4 | 19 | |||||
| High Peak (1974 onw) | 1974Q2 - 2012Q4 | 6 | 395 | ||||
| Highworth | - 1899Q1 | 8 | 5a | ||||
| Hillingdon (1965 onw) | 1965Q2 -   | 5c | 13 | 236 | |||
| Hinckley | - 1999Q4 | 15 | 7a | 3a | 3a | 6 | 599 |
| Hiraethog | 1935Q4 - 1974Q1 | 11b | 8a | 8a | |||
| Hitchin | - 1996Q1 | 6 | 3a | 4b | 4b | 10 | 534 |
| Hitchin & Stevenage | 1996Q1 - 2008Q1 | 534 | |||||
| Holbeach | - 1935Q4 | 14 | 7a | ||||
| Holbeck | 1862Q4 - 1925Q3 | 9b | |||||
| Holborn | - 1965Q1 | 2 | 1b | 5c | |||
| Holderness | 1937Q2 - 1974Q1 | 9d | 2a | 2a | |||
| Hollingbourne | - 1941Q1 | 5 | 2a | ||||
| Holsworthy | - 1998Q1 | 9 | 5b | 7a | 7a | 21 | 409 |
| Holyhead | 1885Q1 - 1937Q1 | 11b | |||||
| Holywell | - 1974Q1 | 27 | 11b | 8a | 8a | ||
| Honiton | - 1998Q1 | 10 | 5b | 7a | 7a | 21 | 410 |
| Hoo | - 1923Q2 | 5 | 2a | ||||
| Horncastle | - 2003Q1 | 14 | 7a | 3b | 3b | 7 | 617 |
| Horsham | - 2010Q1 | 7 | 2b | 5h | 5h | 18 | 783 |
| Horwich | 1935Q4 - 1967Q4 | 8c | 10c | 10c | |||
| Houghton le Spring | - 1938Q2 | 24 | 10a | ||||
| Hounslow | 1965Q2 -   | 5c | 13 | 237 | |||
| Hove (1935-1998) | 1935Q2 - 1998Q4 | 2b | 5h | 5h | 18 | 457 | |
| Howden (1837-1937) | - 1937Q1 | 23 | 9d | ||||
| Howdenshire (1937-1974) | 1937Q2 - 1974Q1 | 9d | 2a | 2a | |||
| Hoxne | - 1907Q2 | 13 | 4a | ||||
| Huddersfield | - 2012Q3 | 22 | 9a | 2b | 2b | 4 | 089 |
| Hull |   | 22 | 9d | 2a | 2a | 7 | 550 |
| Hungerford | - 1937Q1 | 6 | 2c | ||||
| Hunslet (1845-1929) | 1845Q1 - 1928Q4 | 23 | 9b | ||||
| Huntingdon | - 2007Q3 | 14 | 3b | 4b | 4b | 9 | 333 |
| Huntingdonshire North | 1934Q1 - 1967Q4 | 3b | 4b | 4b | |||
| Hursley | - 1837Q3 | 7 | |||||
| Hyde (1937-1974) | 1937Q2 - 1974Q1 | 8a | 10a | 10a | |||
| Hyndburn & Rossendale | 1974Q2 - 2005Q2 | 40 | 586 | ||||
| Ilford | 1939Q3 - 1965Q1 | 4a | 5a | ||||
| Ilkeston | 1938Q2 - 1997Q1 | 7b | 3a | 3a | 6 | 396 | |
| Ince | 1936Q3 - 1974Q1 | 8c | 10c | 10c | |||
| Ipswich | - 2010Q4 | 12 | 4a | 4b | 4b | 10 | 747 |
| Isle of Wight |   | 8 | 2b | 6b | 6b | 20 | 556 |
| Isles of Scilly (1901 onw) | 1901Q2 -   | 5c | 7a | 7a | 21 | 360 | |
| Islington |   | 3 | 1b | 5c | 5c | 13 | 238 |
| Jarrow | 1974Q2 - 2000Q4 | 2 | 056 | ||||
| Keighley (1837-1946) | - 1946Q4 | 23 | 9a | 2c | |||
| Keighley (1974 onw) | 1974Q2 - 2008Q3 | 4 | 082 | ||||
| Kendal (1837-1937) | - 1937Q3 | 25 | 10b | ||||
| Kendal (1974 onw) | 1974Q2 - 2011Q4 | 1 | 377 | ||||
| Kensington | - 1981Q2 | 3 | 1a | 5c | 5c | 13 | |
| Kensington & Chelsea | 1981Q3 -   | 13 | 239 | ||||
| Kerrier | 1936Q3 - 2007Q2 | 5c | 7a | 7a | 21 | 361 | |
| Kettering | - 2010Q3 | 15 | 3b | 3b | 3b | 7 | 669 |
| Ketton | 1934Q1 - 1974Q1 | 7a | 3c | 3c | |||
| Keynsham | - 1936Q1 | 11 | 5c | ||||
| Kidderminster | - 2006Q1 | 18 | 6c | 9d | 9d | 29 | 517 |
| Kings Lynn | - 2011Q1 | 13 | 4b | 4b | 4b | 10 | 637 |
| Kings Norton (1913-1924) | 1913Q1 - 1924Q3 | 6d | |||||
| Kings Norton (to 1912) | - 1912Q4 | 18 | 6c | ||||
| Kingsbridge | - 1998Q1 | 9 | 5b | 7a | 7a | 21 | 411 |
| Kingsclere & Whitchurch (1932-2000) | 1932Q4 - 2000Q4 | 2c | 6b | 6b | 20 | 493 | |
| Kingsclere (1837-1932) | - 1932Q3 | 7 | 2c | ||||
| Kingston | - 1934Q1 | 4 | 2a | ||||
| Kingston upon Thames | 1965Q2 -   | 5c | 13 | 240 | |||
| Kingswinford (1934-37) | 1934Q3 - 1937Q1 | 6b | |||||
| Kingswood (1937-74) | 1937Q2 - 1974Q1 | 6a | 7b | 7b | |||
| Kington (1837-8) | - 1838Q4 | 26 | |||||
| Kington (1870) | 1870Q2 - 1870Q4 | 11b | |||||
| Kington (1871 onw) | 1871Q1 - 2008Q1 | 6a | 9a | 9a | 29 | 518 | |
| Kirk Deighton | 1861Q3 - 1869Q2 | 9a | |||||
| Kirkstall | 1862Q4 - 1869Q2 | 9b | |||||
| Knaresborough | - 1946Q4 | 23 | 9a | 2c | |||
| Knighton | - 1933Q1 | 26 | 11b | ||||
| Knowsley | 1974Q2 -   | 36 | 023 | ||||
| Lambeth |   | 4 | 1d | 5c | 5d | 14 | 241 |
| Lampeter | - 1936Q2 | 27 | 11b | ||||
| Lancaster | - 2005Q2 | 21 | 8e | 10c | 10c | 40 | 587 |
| Lanchester (1837 only) | - 1837Q3 | 24 | |||||
| Lanchester (1875-1938) | 1875Q2 - 1938Q2 | 10a | |||||
| Langport | - 1936Q1 | 10 | 5c | ||||
| Launceston | - 2007Q2 | 9 | 5c | 7a | 7a | 21 | 362 |
| Ledbury | - 2008Q1 | 26 | 6a | 9a | 9a | 29 | 519 |
| Leeds (1837-1929) | - 1928Q4 | 23 | 9b | ||||
| Leeds (1939 onw) | 1939Q2 -   | 9b | 2c | 2c | 5 | 092 | |
| Leeds North | 1929Q1 - 1939Q1 | 9b | |||||
| Leeds South | 1929Q1 - 1939Q1 | 9b | |||||
| Leek | - 1974Q1 | 17 | 6b | 9b | 9b | ||
| Leicester (1837-1974) | - 1974Q1 | 15 | 7a | 3a | 3a | ||
| Leicestershire Central | 1949Q4 - 1997Q1 | 3a | 3a | 6 | 600 | ||
| Leigh | - 1995Q3 | 21 | 8c | 10d | 10d | 39 | 017 |
| Leighton Buzzard | - 1999Q2 | 6 | 3b | 4a | 4a | 9 | 314 |
| Leominster | - 2008Q1 | 26 | 6a | 9a | 9a | 29 | 520 |
| Lewes | - 2008Q2 | 7 | 2b | 5h | 5h | 18 | 459 |
| Lewisham |   | 5 | 1d | 5d | 5d | 14 | 242 |
| Lexden | - 1939Q2 | 12 | 4a | ||||
| Leyburn | - 1936Q3 | 24 | 9d | ||||
| Lichfield | - 2008Q3 | 17 | 6b | 9b | 9b | 30 | 732 |
| Limehouse | 1921Q3 - 1925Q4 | 1c | |||||
| Lincoln | - 2003Q1 | 14 | 7a | 3b | 3b | 7 | 619 |
| Linton | - 1935Q1 | 14 | 3b | ||||
| Liskeard | - 2007Q2 | 9 | 5c | 7a | 7a | 21 | 363 |
| Littleborough | 1936Q4 - 1974Q1 | 8e | 10d | 10d | |||
| Liverpool (1837-1934) | - 1934Q3 | 20 | 8b | ||||
| Liverpool (1969 onw) | 1969Q4 -   | 10d | 36 | 025 | |||
| Liverpool North | 1934Q4 - 1969Q3 | 8b | 10d | 10d | |||
| Liverpool South | 1934Q4 - 1969Q3 | 8b | 10d | 10d | |||
| Llandilofawr | - 1935Q2 | 26 | 11a | ||||
| Llandovery | - 1935Q2 | 26 | 11a | ||||
| Llanelli (1974 onw) | 1974Q2 - 2007Q1 | 24 | 820 | ||||
| Llanelly (to 1974) | - 1974Q1 | 26 | 11a | 8a | 8a | ||
| Llanfyllin | - 1982Q1 | 27 | 11b | 8c | 8c | 26 | |
| Llanrwst | - 1935Q3 | 27 | 11b | ||||
| Loddon | - 1938Q4 | 13 | 4b | ||||
| London City |   | 2 | 1c | 5d | 5d | 14 | 243 |
| Long Ashton | 1899Q2 - 1936Q1 | 5c | |||||
| Longtown | - 1939Q1 | 25 | 10b | ||||
| Lothingland (1935-1974) | 1935Q2 - 1974Q1 | 4a | 4b | 4b | |||
| Loughborough | - 1999Q4 | 15 | 7a | 3a | 3a | 6 | 601 |
| Louth | - 2003Q1 | 14 | 7a | 3b | 3b | 7 | 620 |
| Lower Agbrigg | 1939Q1 - 1974Q1 | 9c | 2c | 2c | |||
| Ludlow | - 2005Q3 | 18 | 6a | 9a | 9a | 30 | 712 |
| Lunesdale | 1869Q3 - 1974Q1 | 8e | 10d | 10d | |||
| Luton |   | 6 | 3b | 4a | 4a | 9 | 315 |
| Lutterworth | - 1974Q1 | 15 | 7a | 3a | 3a | ||
| Lymington | - 1932Q3 | 8 | 2b | ||||
| Macclesfield | - 1998Q1 | 19 | 8a | 10a | 10a | 35 | 344 |
| Machynlleth | - 2009Q1 | 27 | 11b | 8c | 8c | 26 | 874 |
| Madeley | - 1935Q3 | 18 | 6a | ||||
| Maelor | 1954Q1 - 1974Q1 | 8a | 8a | ||||
| Maidenhead | 1896Q2 - 1974Q1 | 2c | 6a | 6a | |||
| Maidstone | - 2003Q1 | 5 | 2a | 5b | 5f | 16 | 569 |
| Maldon (1837-1972) | - 1972Q4 | 12 | 4a | 4a | 4a | ||
| Maldon (1974 onw) | 1974Q2 - 1974Q2 | 9 | |||||
| Malling | - 1941Q1 | 5 | 2a | ||||
| Malmesbury | - 1936Q1 | 8 | 5a | ||||
| Malton | - 1936Q3 | 24 | 9d | ||||
| Malvern | 1952Q2 - 2006Q1 | 9d | 9d | 29 | 521 | ||
| Manchester (1837-1924) | - 1924Q4 | 20 | 8d | ||||
| Manchester (1939 onw) | 1939Q2 -   | 8d | 10e | 10e | 38 | 006 | |
| Manchester North | 1925Q1 - 1939Q1 | 8d | |||||
| Manchester South | 1925Q1 - 1939Q1 | 8d | |||||
| Mansfield | - 2012Q1 | 15 | 7b | 3c | 3c | 8 | 687 |
| March | 1938Q2 - 1980Q2 | 3b | 4a | 4a | 9 | ||
| Market Bosworth | - 1974Q1 | 15 | 7a | 3a | 3a | ||
| Market Drayton | - 1935Q3 | 18 | 6a | ||||
| Market Harborough | - 1999Q4 | 15 | 7a | 3a | 3a | 6 | 602 |
| Marlborough | - 1998Q3 | 8 | 5a | 7c | 7c | 23 | 792 |
| Martley (from 1934) | 1934Q3 - 1976Q2 | 6c | 9d | 9d | 29 | ||
| Martley (to 1913) | - 1913Q1 | 18 | 6c | ||||
| Marylebone (1837-1901) | - 1901Q4 | 1 | 1a | ||||
| Matlock (1837-8) | - 1838Q4 | 19 | |||||
| Medway (1837-1941) | - 1941Q1 | 5 | 2a | ||||
| Medway (1998 onw) | 1998Q2 -   | 561 | |||||
| Melksham | - 1936Q1 | 8 | 5a | ||||
| Melton & Rutland | 1995Q2 - 1997Q1 | 604 | |||||
| Melton Mowbray | - 1995Q1 | 15 | 7a | 3a | 3a | 6 | 603 |
| Melton Mowbray (1997 onw) | 1997Q2 - 1999Q4 | 603 | |||||
| Mendip | 1974Q2 - 2007Q4 | 23 | 721 | ||||
| Mere | - 1977Q4 | 8 | 5a | 7c | 7c | 23 | |
| Meriden | - 1977Q4 | 16 | 6d | 9c | 9c | 34 | |
| Merioneth East | 1935Q4 - 1974Q1 | 11b | 8c | 8c | |||
| Merioneth North | 1935Q4 - 1974Q1 | 11b | 8c | 8c | |||
| Merioneth South | 1935Q4 - 1974Q1 | 11b | 8c | 8c | |||
| Merthyr Tydfil |   | 26 | 11a | 8b | 8b | 27 | 860 |
| Merton | 1965Q2 -   | 5d | 14 | 244 | |||
| Mid Devon | 1978Q3 - 2007Q1 | 21 | 421 | ||||
| Mid Glamorgan | 1970Q4 - 1974Q1 | 8b | |||||
| Mid Powys | 1988Q1 - 2009Q1 | 26 | 867 | ||||
| Mid Surrey | 1996Q4 - 2000Q2 | 756 | |||||
| Mid Warwickshire | 1985Q4 - 2005Q2 | 31 | 775 | ||||
| Middlesbrough (1875-1968) | 1875Q4 - 1968Q1 | 9d | 1b | 1b | |||
| Middlesbrough (1996 onw) | 1996Q2 -   | 348 | |||||
| Middlesex South | 1947Q4 - 1965Q1 | 5f | |||||
| Middleton (1933-74) | 1933Q4 - 1974Q1 | 8d | 10e | 10e | |||
| Midhurst & Petworth | 1935Q2 - 1974Q1 | 2b | 5h | 5h | |||
| Midhurst (to 1935) | - 1935Q1 | 7 | 2b | ||||
| Mildenhall | - 1938Q2 | 13 | 4a | ||||
| Mile End Old Town | 1857Q4 - 1925Q4 | 1c | |||||
| Millom | 1939Q2 - 2011Q4 | 10b | 1a | 1a | 1 | 379 | |
| Milton | - 1941Q1 | 5 | 2a | ||||
| Milton Keynes | 1985Q2 -   | 19 | 326 | ||||
| Mitford | - 1938Q4 | 13 | 4b | ||||
| Monmouth (1837-1939) | - 1939Q1 | 26 | 11a | ||||
| Monmouthshire | 1996Q2 -   | 839 | |||||
| Montgomery | - 1870Q2 | 27 | 11b | ||||
| Morpeth | - 1936Q4 | 25 | 10b | ||||
| Mutford | - 1935Q1 | 13 | 4a | ||||
| Nantwich | - 1937Q1 | 19 | 8a | ||||
| Narberth | - 1973Q1 | 26 | 11a | 8c | 8c | ||
| Neath (1837-1970) | - 1970Q3 | 26 | 11a | 8b | 8b | ||
| Neath (1974 onw) | 1974Q2 - 1996Q1 | 27 | 896 | ||||
| Neath Port Talbot | 1996Q2 -   | 896 | |||||
| Nelson (1936-1974) | 1936Q2 - 1974Q1 | 8e | 10e | 10e | |||
| New Forest | - 2008Q1 | 8 | 2b | 6b | 6b | 20 | 494 |
| Newark | - 2012Q1 | 15 | 7b | 3c | 3c | 8 | 688 |
| Newbury | - 1998Q1 | 6 | 2c | 6a | 6a | 19 | 319 |
| Newcastle in Emlyn | - 1936Q2 | 26 | 11b | ||||
| Newcastle under Lyme | - 2008Q3 | 17 | 6b | 9b | 9b | 30 | 733 |
| Newcastle upon Tyne |   | 25 | 10b | 1b | 1b | 2 | 053 |
| Newent | - 1937Q1 | 11 | 6a | ||||
| Newham | 1968Q1 -   | 5e | 15 | 257 | |||
| Newhaven (1837-39) | - 1839Q1 | 7 | |||||
| Newhaven (1901-35) | 1901Q4 - 1935Q1 | 2b | |||||
| Newington | - 1869Q4 | 4 | 1d | ||||
| Newmarket (1938-1989) | 1938Q3 - 1989Q1 | 4a | 4b | 4b | 10 | ||
| Newmarket (to 1938) | - 1938Q2 | 14 | 3b | ||||
| Newport M |   | 26 | 11a | 8c | 8c | 28 | 836 |
| Newport Pagnell | - 1935Q1 | 6 | 3a | ||||
| Newport S | - 1935Q3 | 18 | 6a | ||||
| Newton | 1934Q2 - 1974Q1 | 8c | 10f | 10f | |||
| Newton Abbot | - 1996Q4 | 10 | 5b | 7a | 7a | 21 | 413 |
| Newtown | - 2009Q1 | 27 | 11b | 8c | 8c | 26 | 875 |
| North Aylesford | - 1884Q4 | 5 | 2a | ||||
| North Bierley | 1892Q1 - 1938Q4 | 9b | |||||
| North Bucks | 1935Q2 - 1985Q1 | 3a | 6a | 6a | 19 | ||
| North Cleveland | 1974Q2 - 1996Q1 | 3 | 351 | ||||
| North Cotswold | 1937Q2 - 2006Q1 | 6a | 7b | 7b | 22 | 485 | |
| North Devon | 1998Q2 - 2007Q1 | 404 | |||||
| North Dorset | 1974Q2 - 2005Q4 | 23 | 430 | ||||
| North East Cheshire | 1937Q2 - 1974Q1 | 8a | 10a | 10a | |||
| North East Hampshire | 1974Q2 - 2008Q1 | 20 | 495 | ||||
| North East Lincolnshire | 1996Q2 -   | 548 | |||||
| North Kesteven | 1934Q1 - 1974Q1 | 7a | 3b | 3b | |||
| North Lincolnshire | 1996Q2 -   | 554 | |||||
| North Shropshire | 1970Q1 - 2005Q3 | 9a | 30 | 713 | |||
| North Somerset | 1996Q2 -   | 307 | |||||
| North Surrey | 1996Q4 - 2008Q3 | 757 | |||||
| North Tyneside | 1985Q2 -   | 2 | 054 | ||||
| North Tyneside East | 1974Q2 - 1985Q1 | 2 | |||||
| North Tyneside West | 1974Q2 - 1985Q1 | 2 | |||||
| North Walsham | 1939Q1 - 2011Q1 | 4b | 4b | 4b | 10 | 638 | |
| North Warwickshire | 1974Q2 - 2005Q2 | 31 | 767 | ||||
| North Witchford | - 1938Q1 | 14 | 3b | ||||
| Northallerton | - 1998Q3 | 24 | 9d | 1b | 1b | 2 | 652 |
| Northampton & Hardingstone | 1924Q1 - 1936Q2 | 3b | |||||
| Northampton (1837-1923) | - 1923Q4 | 15 | 3b | ||||
| Northampton (1936 onw) | 1936Q3 - 2010Q3 | 3b | 3b | 3b | 7 | 670 | |
| Northleach | - 1937Q1 | 11 | 6a | ||||
| Northumberland Central | 1937Q1 - 2008Q1 | 10b | 1b | 1b | 1 | 677 | |
| Northumberland North First | 1937Q1 - 2008Q1 | 10b | 1b | 1b | 1 | 678 | |
| Northumberland North Second | 1937Q1 - 2008Q1 | 10b | 1b | 1b | 1 | 679 | |
| Northumberland South | 1936Q4 - 1974Q1 | 10b | 1b | 1b | |||
| Northumberland West | 1937Q1 - 2008Q1 | 10b | 1b | 1b | 1 | 680 | |
| Northwich | - 1974Q1 | 19 | 8a | 10a | 10a | ||
| Norton Radstock | 1936Q2 - 1974Q1 | 5c | 7c | 7c | |||
| Norwich | - 2011Q1 | 13 | 4b | 4b | 4b | 10 | 639 |
| Norwich Outer | 1939Q1 - 1991Q1 | 4b | 4b | 4b | 10 | ||
| Nottingham |   | 15 | 7b | 3c | 3c | 8 | 689 |
| Nuneaton | - 1985Q3 | 16 | 6d | 9c | 9c | 31 | |
| Nuneaton & Bedworth | 1985Q4 - 2005Q2 | 31 | 768 | ||||
| Oakham | - 1974Q1 | 15 | 7a | 3c | 3c | ||
| Ogwr | 1974Q2 - 1996Q1 | 27 | 861 | ||||
| Okehampton | - 1997Q2 | 10 | 5b | 7a | 7a | 21 | 415 |
| Oldbury | 1934Q3 - 1966Q1 | 6c | 9d | 9d | |||
| Oldham | 1848Q2 -   | 20 | 8d | 10f | 10f | 39 | 007 |
| Ongar | - 1939Q2 | 12 | 4a | ||||
| Ormskirk | - 1974Q1 | 21 | 8b | 10f | 10f | ||
| Orsett | - 1939Q2 | 12 | 4a | ||||
| Oswestry | - 2005Q3 | 18 | 6a | 9a | 9a | 30 | 714 |
| Otley | - 1869Q3 | 23 | 9a | ||||
| Oundle | - 1974Q1 | 15 | 3b | 3b | 3b | ||
| Oundle & Thrapston | 1974Q2 - 2010Q3 | 7 | 671 | ||||
| Overton | 1935Q4 - 1953Q4 | 11b | 8a | ||||
| Oxford | - 2001Q3 | 16 | 3a | 6b | 6b | 20 | 702 |
| Paddington | 1885Q1 - 1977Q4 | 1a | 5d | 5d | 14 | ||
| Pancras (1837-1901) | - 1901Q4 | 1 | 1b | ||||
| Pateley Bridge | - 1946Q4 | 23 | 9a | 2c | |||
| Patrington | - 1937Q1 | 23 | 9d | ||||
| Pembroke | - 1982Q4 | 26 | 11a | 8c | 8c | 24 | |
| Penistone (1911-1946) | 1911Q1 - 1946Q4 | 9c | 2c | ||||
| Penkridge | - 1877Q1 | 17 | 6b | ||||
| Penllyn | 1974Q2 - 2009Q2 | 25 | 852 | ||||
| Penrith | - 2011Q4 | 25 | 10b | 1a | 1a | 1 | 380 |
| Penzance | - 2007Q2 | 9 | 5c | 7a | 7a | 21 | 365 |
| Pershore | - 2006Q1 | 18 | 6c | 9d | 9d | 29 | 523 |
| Peterborough |   | 15 | 3b | 3b | 4b | 9 | 335 |
| Petersfield | - 2008Q1 | 7 | 2c | 6b | 6b | 20 | 496 |
| Petworth (to 1935) | - 1935Q1 | 7 | 2b | ||||
| Pewsey | - 1936Q1 | 8 | 5a | ||||
| Pickering | - 1936Q3 | 24 | 9d | ||||
| Plomesgate | - 1935Q1 | 12 | 4a | ||||
| Ploughley & Bullingdon | 1932Q4 - 1964Q3 | 3a | 6b | ||||
| Ploughley (1964 onw) | 1964Q4 - 2001Q3 | 6b | 6b | 20 | 703 | ||
| Plymouth |   | 9 | 5b | 7a | 7a | 21 | 416 |
| Plympton (1936-74) | 1936Q3 - 1974Q1 | 5b | 7a | 7a | |||
| Plympton St Mary | - 1936Q2 | 9 | 5b | ||||
| Pocklington (1837-1937) | - 1937Q1 | 23 | 9d | ||||
| Pocklington (1974 onw) | 1974Q2 - 2002Q2 | 7 | 552 | ||||
| Pontardawe | 1875Q3 - 1934Q4 | 11a | |||||
| Pontefract | - 2008Q1 | 22 | 9c | 2c | 2c | 5 | 098 |
| Pontypool | - 1996Q1 | 26 | 11a | 8c | 8c | 28 | 837 |
| Pontypridd | 1863Q3 - 2002Q3 | 11a | 8b | 8b | 27 | 862 | |
| Poole (1959 onw) | 1959Q1 - 2019Q1 | 7c | 7c | 23 | 431 | ||
| Poole (to 1958) | - 1958Q4 | 8 | 5a | 6a | |||
| Poplar & Bethnal Green | 1966Q1 - 1982Q4 | 5d | 14 | ||||
| Poplar (to 1965) | - 1965Q4 | 2 | 1c | 5d | 5d | ||
| Portsea Island (1837-1900) | - 1900Q2 | 7 | 2b | ||||
| Portsmouth (1900 onw) | 1900Q3 -   | 2b | 6b | 6b | 20 | 497 | |
| Potterspury | - 1935Q1 | 15 | 3b | ||||
| Prescot | - 1974Q1 | 20 | 8b | 10f | 10f | ||
| Presteigne (1837-77) | - 1877Q2 | 26 | 11b | ||||
| Preston | - 1974Q1 | 21 | 8e | 10f | 10f | ||
| Preston & South Ribble | 1974Q2 - 2005Q2 | 40 | 588 | ||||
| Prestwich | 1874Q4 - 1924Q4 | 8d | |||||
| Pwllheli & Porthmadog | 1974Q2 - 1996Q4 | 25 | 853 | ||||
| Pwllheli & Portmadoc | 1937Q2 - 1974Q1 | 11b | 8a | 8a | |||
| Pwllheli (to 1937) | - 1937Q1 | 27 | 11b | ||||
| Radford | - 1880Q2 | 15 | 7b | ||||
| Radnorshire East | 1933Q2 - 2009Q1 | 11b | 8c | 8c | 26 | 876 | |
| Radnorshire West | 1933Q2 - 1987Q4 | 11b | 8c | 8c | 26 | ||
| Reading & Wokingham | 1974Q2 - 1998Q1 | 19 | 320 | ||||
| Reading (1837-1974) | - 1974Q1 | 6 | 2c | 6a | 6a | ||
| Redbridge (1965 onw) | 1965Q2 -   | 5d | 14 | 247 | |||
| Redcar & Cleveland | 1996Q2 -   | 349 | |||||
| Redditch | 1994Q4 - 2006Q1 | 522 | |||||
| Redruth (to 1974) | - 1974Q1 | 9 | 5c | 7a | 7a | ||
| Reeth | 1840Q3 - 1936Q3 | 24 | 9d | ||||
| Reigate | - 1934Q1 | 4 | 2a | ||||
| Repton (1937-1974) | 1937Q1 - 1974Q1 | 7b | 3a | 3a | |||
| Rhayader | - 1933Q1 | 26 | 11b | ||||
| Rhuddlan | 1974Q2 - 1996Q1 | 24 | 811 | ||||
| Ribble Valley | 1974Q2 - 2005Q2 | 40 | 589 | ||||
| Richmond Sry | - 1934Q1 | 4 | 2a | ||||
| Richmond upon Thames | 1965Q2 -   | 5d | 14 | 248 | |||
| Richmond Yk | - 1998Q3 | 24 | 9d | 1b | 1b | 2 | 653 |
| Ringwood & Fordingbridge | 1974Q2 - 1999Q2 | 20 | 498 | ||||
| Ringwood (to 1932) | - 1932Q3 | 8 | 2b | ||||
| Ripon | - 1946Q4 | 23 | 9a | 2c | |||
| Risbridge | - 1938Q2 | 12 | 4a | ||||
| Rochdale |   | 21 | 8e | 10f | 10f | 39 | 009 |
| Rochford | - 1974Q1 | 12 | 4a | 4a | 4a | ||
| Romford | - 1965Q1 | 12 | 4a | 5a | |||
| Romney Marsh | - 1941Q1 | 5 | 2a | ||||
| Romsey & Stockbridge | 1932Q4 - 1974Q1 | 2c | 6b | 6b | |||
| Romsey (1837-1932) | - 1932Q3 | 7 | 2c | ||||
| Romsey (1974 onw) | 1974Q2 - 2008Q1 | 20 | 499 | ||||
| Ross | - 2008Q1 | 26 | 6a | 9a | 9a | 29 | 524 |
| Rothbury | - 1936Q4 | 25 | 10b | ||||
| Rother Valley | 1938Q2 - 1974Q1 | 9c | 2c | 2c | |||
| Rotherham |   | 22 | 9c | 2c | 2c | 3 | 045 |
| Rotherhithe (to 1869) | - 1869Q4 | 4 | 1d | ||||
| Rowley Regis | 1935Q2 - 1966Q1 | 6b | 9b | 9b | |||
| Royston | - 1939Q3 | 6 | 3a | ||||
| Rugby | - 2005Q2 | 16 | 6d | 9c | 9c | 31 | 770 |
| Runcorn | - 1974Q1 | 19 | 8a | 10a | 10a | ||
| Rushcliffe | 1974Q2 - 2012Q1 | 8 | 690 | ||||
| Ruthin | - 1974Q1 | 27 | 11b | 8a | 8a | ||
| Rutland (1974-1995) | 1974Q2 - 1995Q1 | 6 | 604 | ||||
| Rutland (1997 onw) | 1997Q2 -   | 604 | |||||
| Rye | - 1935Q1 | 7 | 2b | ||||
| Ryedale | 1936Q4 - 1998Q3 | 9d | 1b | 1b | 2 | 654 | |
| Saddleworth | - 1974Q1 | 23 | 9a | 2c | 2c | ||
| Saffron Walden | - 1974Q1 | 12 | 4a | 4a | 4a | ||
| Salford |   | 20 | 8d | 10f | 10f | 39 | 011 |
| Salisbury (1837-69) | - 1869Q1 | 8 | 5a | ||||
| Salisbury (1895 onw) | 1895Q3 - 2008Q1 | 5a | 7c | 7c | 23 | 795 | |
| Samford | - 1974Q1 | 12 | 4a | 4b | 4b | ||
| Sandwell | 1974Q2 -   | 33 | 070 | ||||
| Scarborough | - 1998Q3 | 24 | 9d | 1b | 1b | 2 | 655 |
| Scilly Islands | - 1901Q1 | 9 | 5c | ||||
| Sculcoates | - 1937Q1 | 22 | 9d | ||||
| Scunthorpe (1938-1996) | 1938Q4 - 1996Q1 | 7a | 3b | 3b | 7 | 554 | |
| Sedbergh | - 1974Q1 | 23 | 9a | 2c | 2c | ||
| Sedgefield (1837 only) | - 1837Q4 | 24 | |||||
| Sedgefield (1896-1938) | 1896Q1 - 1938Q2 | 10a | |||||
| Sedgemoor | 1974Q2 - 2007Q4 | 23 | 723 | ||||
| Sefton North | 1980Q2 - 2011Q2 | 37 | 034 | ||||
| Sefton South | 1980Q2 - 2011Q2 | 37 | 032 | ||||
| Seisdon (1837-8) | - 1838Q4 | 17 | |||||
| Seisdon (1966-74) | 1966Q2 - 1974Q1 | 9b | |||||
| Selby | - 1998Q3 | 23 | 9c | 2c | 2c | 2 | 656 |
| Settle | - 1946Q4 | 23 | 9a | 2c | |||
| Sevenoaks | - 1941Q1 | 5 | 2a | ||||
| Shaftesbury | - 1937Q1 | 8 | 5a | ||||
| Shardlow | - 1974Q1 | 19 | 7b | 3a | 3a | ||
| Sheffield |   | 22 | 9c | 2d | 2d | 3 | 048 |
| Sheppey | - 1979Q4 | 5 | 2a | 5b | 5f | 16 | |
| Shepton Mallet | - 1936Q1 | 10 | 5c | ||||
| Shepway | 1974Q2 - 1998Q1 | 16 | 573 | ||||
| Sherborne | - 1937Q1 | 8 | 5a | ||||
| Shifnal | - 1935Q3 | 18 | 6a | ||||
| Shipston on Stour | - 1985Q3 | 11 | 6d | 9c | 9c | 31 | |
| Shoreditch | - 1965Q1 | 2 | 1c | 5d | |||
| Shrewsbury (1837-71) | - 1871Q3 | 18 | 6a | ||||
| Shrewsbury (1935 onw) | 1935Q4 - 2005Q3 | 6a | 9a | 9a | 30 | 715 | |
| Sidcup | 1952Q4 - 1965Q1 | 5b | |||||
| Sittingbourne (1941 onw) | 1941Q2 - 1979Q4 | 2a | 5b | 5f | 16 | ||
| Skipton (to 1946) | - 1946Q4 | 23 | 9a | 2d | |||
| Skirlaugh | - 1937Q1 | 22 | 9d | ||||
| Sleaford & East Kesteven | 1934Q1 - 1974Q1 | 7a | 3b | 3b | |||
| Sleaford (1974 onw) | 1974Q2 - 2003Q1 | 7 | 623 | ||||
| Sleaford (to 1933) | - 1933Q4 | 14 | 7a | ||||
| Slough | 1974Q2 -   | 19 | 321 | ||||
| Smallburgh | 1870Q1 - 1938Q4 | 4b | |||||
| Smethwick | 1932Q4 - 1966Q1 | 6b | 9b | 9b | |||
| Sodbury (1937-1996) | 1937Q2 - 1996Q1 | 6a | 7b | 7b | 22 | 304 | |
| Solihull | - 1977Q4 | 16 | 6d | 9c | 9c | 34 | |
| Solihull North | 1978Q1 - 2001Q1 | 34 | 072 | ||||
| Solihull South | 1978Q1 - 2001Q1 | 34 | 073 | ||||
| South Cheshire | 1991Q3 - 1998Q1 | 35 | 341 | ||||
| South Derbyshire | 1997Q2 - 2013Q1 | 397 | |||||
| South Dorset | 1997Q2 - 2001Q3 | 433 | |||||
| South East Hampshire | 1974Q2 - 2008Q1 | 20 | 501 | ||||
| South East Surrey | 1996Q4 - 2000Q2 | 760 | |||||
| South Glamorgan | 1974Q2 - 1996Q1 | 28 | 890 | ||||
| South Gloucestershire | 1996Q2 -   | 304 | |||||
| South Molton | - 1936Q2 | 10 | 5b | ||||
| South Pembrokeshire | 1983Q1 - 2003Q1 | 24 | 821 | ||||
| South Shields | - 2000Q4 | 24 | 10a | 1a | 1a | 2 | 057 |
| South Staffordshire | 1974Q2 - 2008Q3 | 30 | 734 | ||||
| South Stoneham | - 1927Q1 | 7 | 2c | ||||
| South Warwickshire | 1985Q4 - 2005Q2 | 31 | 773 | ||||
| Southam | - 1985Q3 | 16 | 6d | 9c | 9c | 31 | |
| Southampton |   | 7 | 2c | 6b | 6b | 20 | 500 |
| Southend on Sea | 1939Q3 -   | 4a | 4a | 4a | 9 | 475 | |
| Southport | 1934Q2 - 1980Q1 | 8b | 10f | 10f | 37 | ||
| Southwark(1901 onw) | 1901Q2 -   | 1d | 5d | 5e | 15 | 251 | |
| Southwell | - 1974Q1 | 15 | 7b | 3c | 3c | ||
| Spalding | - 2003Q1 | 14 | 7a | 3b | 3b | 7 | 625 |
| Spen Valley | 1939Q1 - 1974Q1 | 9b | 2d | 2d | |||
| Spilsby | - 2003Q1 | 14 | 7a | 3b | 3b | 7 | 626 |
| St Albans | - 2008Q1 | 6 | 3a | 4b | 4b | 10 | 535 |
| St Asaph | - 1974Q1 | 27 | 11b | 8a | 8a | ||
| St Austell | - 2007Q2 | 9 | 5c | 7a | 7a | 21 | 367 |
| St Columb | - 1936Q2 | 9 | 5c | ||||
| St Faiths | - 1938Q4 | 13 | 4b | ||||
| St George Hanover Square | - 1933Q3 | 1 | 1a | ||||
| St George in the East | - 1925Q4 | 2 | 1c | ||||
| St George Southwark | - 1869Q4 | 4 | 1d | ||||
| St Germans | - 2007Q2 | 9 | 5c | 7a | 7a | 21 | 368 |
| St Giles | - 1930Q1 | 1 | 1b | ||||
| St Helens | 1935Q3 -   | 8b | 10f | 10f | 37 | 030 | |
| St Ives | - 1967Q4 | 14 | 3b | 4b | 4b | ||
| St James Westminster | - 1870Q2 | 1 | 1a | ||||
| St Luke | - 1869Q2 | 2 | 1b | ||||
| St Martin (1913-33) | 1913Q3 - 1933Q3 | 1a | |||||
| St Martin in the Fields | - 1868Q2 | 1 | 1a | ||||
| St Marylebone (1902-1977) | 1902Q1 - 1977Q4 | 1a | 5d | 5d | 14 | ||
| St Neots | - 1970Q1 | 14 | 3b | 4b | 4b | ||
| St Olave Bermondsey (1902-1934) | 1902Q1 - 1934Q1 | 1d | |||||
| St Olave Southwark (1837-1901) | - 1901Q4 | 4 | 1d | ||||
| St Pancras (1902-1977) | 1902Q1 - 1977Q3 | 1b | 5d | 5d | 14 | ||
| St Saviour Southwark | - 1901Q1 | 4 | 1d | ||||
| St Thomas | - 1936Q2 | 10 | 5b | ||||
| Stafford | - 2008Q3 | 17 | 6b | 9b | 9b | 30 | 735 |
| Staffordshire Moorlands | 1974Q2 - 2008Q3 | 30 | 736 | ||||
| Staincliffe | 1947Q1 - 1998Q3 | 2d | 2d | 2 | 657 | ||
| Staincross | 1938Q3 - 1974Q1 | 9c | 2d | 2d | |||
| Staines | - 1947Q3 | 3 | 3a | 5f | |||
| Stamford | - 2003Q1 | 14 | 7a | 3b | 3b | 7 | 627 |
| Stepney (1926-82) | 1926Q1 - 1982Q4 | 1c | 5d | 5e | 15 | ||
| Stepney (to 1921) | - 1921Q2 | 2 | 1c | ||||
| Stevenage | 1975Q2 - 1996Q1 | 10 | 537 | ||||
| Steyning | - 1935Q1 | 7 | 2b | ||||
| Stockbridge (to 1932) | - 1932Q3 | 7 | 2c | ||||
| Stockport |   | 19 | 8a | 10a | 10a | 39 | 013 |
| Stockton (to 1938) | - 1938Q2 | 24 | 10a | ||||
| Stockton on Tees (1996 onw) | 1996Q2 -   | 350 | |||||
| Stoke and Wolstanton | 1922Q3 - 1934Q4 | 6b | |||||
| Stoke Damerel | - 1898Q3 | 9 | 5b | ||||
| Stoke Newington (1930-1979) | 1930Q2 - 1979Q2 | 1b | 5d | 5e | 15 | ||
| Stoke on Trent | 1935Q1 -   | 6b | 9b | 9b | 30 | 737 | |
| Stoke upon Trent | - 1922Q2 | 17 | 6b | ||||
| Stokesley | - 1936Q3 | 24 | 9d | ||||
| Stone | - 1937Q1 | 17 | 6b | ||||
| Stourbridge | - 2002Q2 | 18 | 6c | 9d | 9d | 33 | 066 |
| Stow (to 1935) | - 1935Q1 | 12 | 4a | ||||
| Stow on the Wold | - 1937Q1 | 11 | 6a | ||||
| Strand (1837-1913) | - 1913Q2 | 1 | 1b | ||||
| Stratford upon Avon | - 1985Q3 | 16 | 6d | 9c | 9c | 31 | |
| Stratton | - 2007Q2 | 9 | 5c | 7a | 7a | 21 | 369 |
| Strood & Hoo | 1923Q3 - 1941Q1 | 2a | |||||
| Strood (1885-1923) | 1885Q1 - 1923Q2 | 2a | |||||
| Stroud (1837 onw) | - 2006Q1 | 11 | 6a | 7b | 7b | 22 | 487 |
| Sturminster (1959 to 1974) | 1959Q1 - 1974Q1 | 7c | 7c | ||||
| Sturminster (to 1958) | - 1958Q4 | 8 | 5a | 6a | |||
| Sudbury | - 2010Q4 | 12 | 4a | 4b | 4b | 10 | 752 |
| Sunderland |   | 24 | 10a | 1a | 1a | 2 | 058 |
| Surrey Mid Eastern | 1934Q2 - 1996Q3 | 2a | 5g | 5g | 17 | 756 | |
| Surrey North Eastern | 1934Q2 - 1965Q1 | 2a | 5g | ||||
| Surrey North Western | 1934Q2 - 1996Q3 | 2a | 5g | 5g | 17 | 758 | |
| Surrey Northern (1948-65) | 1948Q3 - 1965Q1 | 5g | |||||
| Surrey Northern (1965 onw) | 1965Q2 - 1996Q3 | 5g | 17 | 757 | |||
| Surrey South Eastern | 1934Q2 - 1996Q3 | 2a | 5g | 5g | 17 | 760 | |
| Surrey South Western | 1934Q2 - 1996Q3 | 2a | 5g | 5g | 17 | 761 | |
| Sutton (1965 onw) | 1965Q2 -   | 5e | 15 | 254 | |||
| Sutton Coldfield | 1932Q2 - 1974Q1 | 6d | 9c | 9c | |||
| Swadlincote | 1974Q2 - 1997Q1 | 6 | 397 | ||||
| Swaffham | - 1938Q4 | 13 | 4b | ||||
| Swale | 1980Q1 - 1998Q1 | 16 | 574 | ||||
| Swansea |   | 26 | 11a | 8b | 8b | 27 | 897 |
| Swindon | 1899Q2 -   | 5a | 7c | 7c | 23 | 796 | |
| Tadcaster | - 1946Q4 | 23 | 9c | 2d | |||
| Tameside | 1974Q2 -   | 39 | 014 | ||||
| Tamworth | - 1939Q3 | 16 | 6b | ||||
| Taunton (1837-1974) | - 1974Q1 | 10 | 5c | 7c | 7c | ||
| Taunton (1996 onw) | 1996Q2 - 2007Q4 | 724 | |||||
| Taunton Deane | 1974Q2 - 1996Q1 | 23 | 724 | ||||
| Tavistock | - 1997Q2 | 9 | 5b | 7a | 7a | 21 | 419 |
| Teesdale | - 1938Q2 | 24 | 10a | ||||
| Teesside | 1971Q4 - 1974Q1 | 1b | |||||
| Teesside North | 1968Q2 - 1971Q3 | 1b | |||||
| Teesside South | 1968Q2 - 1971Q3 | 1b | |||||
| Teignbridge | 1997Q1 - 2007Q1 | 413 | |||||
| Tenbury | - 2006Q1 | 18 | 6c | 9d | 9d | 29 | 525 |
| Tendring | - 1939Q2 | 12 | 4a | ||||
| Tenterden | - 1941Q1 | 5 | 2a | ||||
| Tetbury | - 1937Q1 | 11 | 6a | ||||
| Tewkesbury | - 1937Q1 | 11 | 6a | ||||
| Thakeham | - 1935Q1 | 7 | 2b | ||||
| Thame | - 1932Q3 | 16 | 3a | ||||
| Thanet | - 1998Q1 | 5 | 2a | 5b | 5f | 16 | 575 |
| Thanet with Dover | 1998Q2 - 2003Q1 | 575 | |||||
| Thetford | - 1938Q4 | 13 | 4b | ||||
| Thingoe | - 1908Q1 | 13 | 4a | ||||
| Thirsk | - 1980Q1 | 24 | 9d | 1b | 1b | 2 | |
| Thornbury | - 1981Q3 | 11 | 6a | 7b | 7b | 22 | |
| Thorne | - 1946Q4 | 23 | 9c | 2d | |||
| Thrapston | - 1974Q1 | 15 | 3b | 3b | 3b | ||
| Thurrock (1939 onw) | 1939Q3 -   | 4a | 4a | 4a | 9 | 477 | |
| Ticehurst | - 1935Q1 | 7 | 2b | ||||
| Tisbury | - 1936Q1 | 8 | 5a | ||||
| Tiverton | - 1978Q2 | 10 | 5b | 7a | 7a | 21 | |
| Todmorden | - 2002Q4 | 21 | 9a | 2d | 2d | 4 | 085 |
| Tonbridge | - 1979Q4 | 5 | 2a | 5b | 5f | 16 | |
| Torbay | 1968Q2 -   | 7a | 21 | 422 | |||
| Torfaen | 1996Q2 -   | 837 | |||||
| Torridge | 1998Q2 - 2007Q1 | 405 | |||||
| Torrington | - 1936Q2 | 10 | 5b | ||||
| Totnes | - 1968Q1 | 9 | 5b | 7a | 7a | ||
| Towcester | - 2001Q3 | 15 | 3b | 3b | 3b | 7 | 672 |
| Tower Hamlets | 1983Q1 -   | 14 | 246 | ||||
| Toxteth Park | 1881Q1 - 1922Q3 | 8b | |||||
| Trafford | 1974Q2 -   | 39 | 015 | ||||
| Tregaron | - 1936Q2 | 27 | 11b | ||||
| Trowbridge | 1936Q2 - 2008Q1 | 5a | 7c | 7c | 23 | 797 | |
| Truro | - 2007Q2 | 9 | 5c | 7a | 7a | 21 | 370 |
| Tunbridge Wells | 1980Q1 - 2003Q1 | 16 | 576 | ||||
| Tunstead | - 1869Q4 | 13 | 4b | ||||
| Tynemouth | - 1974Q1 | 25 | 10b | 1b | 1b | ||
| Uckfield | - 1999Q4 | 7 | 2b | 5h | 5h | 18 | 461 |
| Ulverston | - 2011Q4 | 25 | 8e | 10f | 10f | 1 | 382 |
| Upper Agbrigg | 1939Q3 - 1974Q1 | 9a | 2d | 2d | |||
| Uppingham | - 1974Q1 | 15 | 7a | 3c | 3c | ||
| Upton upon Severn | - 1952Q1 | 18 | 6c | 9d | |||
| Uttlesford | 1974Q2 - 2010Q1 | 9 | 478 | ||||
| Uttoxeter | - 1939Q3 | 17 | 6b | ||||
| Uxbridge | - 1965Q1 | 3 | 3a | 5f | |||
| Vale of Glamorgan | 1996Q2 -   | 891 | |||||
| Vale Royal | 1974Q2 - 1998Q1 | 35 | 345 | ||||
| Vaynor | 1934Q4 - 1974Q1 | 11b | 8a | 8a | |||
| Wainford (1935-1948) | 1935Q2 - 1948Q2 | 4a | 4b | ||||
| Wakefield |   | 22 | 9c | 2d | 2d | 5 | 099 |
| Wallasey | 1936Q1 - 1998Q1 | 8a | 10a | 10a | 37 | 038 | |
| Wallingford | - 2001Q3 | 6 | 2c | 6a | 6a | 20 | 704 |
| Walsall |   | 17 | 6b | 9b | 9b | 34 | 075 |
| Walsingham | - 1938Q4 | 13 | 4b | ||||
| Waltham Forest | 1965Q2 -   | 5e | 15 | 255 | |||
| Wandsworth |   | 4 | 1d | 5d | 5e | 15 | 256 |
| Wangford | - 1935Q1 | 13 | 4a | ||||
| Wantage | - 2001Q3 | 6 | 2c | 6a | 6a | 20 | 705 |
| Ware | - 1974Q1 | 6 | 3a | 4b | 4b | ||
| Wareham | - 1937Q1 | 8 | 5a | ||||
| Warley | 1969Q1 - 1974Q1 | 9d | |||||
| Warley East | 1966Q2 - 1968Q4 | 9d | |||||
| Warley West | 1966Q2 - 1968Q4 | 9d | |||||
| Warminster | - 2008Q1 | 8 | 5a | 7c | 7c | 23 | 798 |
| Warrington |   | 20 | 8c | 10f | 10f | 35 | 346 |
| Warwick & Leamington | 1932Q2 - 1985Q3 | 6d | 9c | 9c | 31 | ||
| Warwick (to 1932) | - 1932Q1 | 16 | 6d | ||||
| Watford | - 2008Q1 | 6 | 3a | 4b | 4b | 10 | 536 |
| Waveney | 1974Q2 - 2010Q4 | 10 | 753 | ||||
| Wayland | - 2011Q1 | 13 | 4b | 4b | 4b | 10 | 643 |
| Weardale | - 1938Q2 | 24 | 10a | ||||
| Wednesbury | 1932Q4 - 1966Q1 | 6b | 9b | 9b | |||
| Wellingborough | - 2010Q3 | 15 | 3b | 3b | 3b | 7 | 673 |
| Wellington Sal | - 1974Q1 | 18 | 6a | 9a | 9a | ||
| Wellington Som | - 1936Q1 | 10 | 5c | ||||
| Wells | - 1974Q1 | 10 | 5c | 7c | 7c | ||
| Welshpool | 1936Q1 - 1982Q1 | 11b | 8c | 8c | 26 | ||
| Welshpool & Llanfyllin | 1982Q2 - 2009Q1 | 26 | 880 | ||||
| Welton (1938-1974) | 1938Q4 - 1974Q1 | 7a | 3b | 3b | |||
| Wem | - 1935Q3 | 18 | 6a | ||||
| Wenlock | 1935Q4 - 1948Q2 | 6a | 9a | ||||
| Wensleydale | 1936Q4 - 1998Q3 | 9d | 1b | 1b | 2 | 659 | |
| Weobley | - 1997Q1 | 26 | 6a | 9a | 9a | 29 | 526 |
| West Ashford | - 1941Q1 | 5 | 2a | ||||
| West Bromwich | - 1974Q1 | 18 | 6b | 9b | 9b | ||
| West Cheshire | 1937Q2 - 1974Q1 | 8a | 10a | 10a | |||
| West Derby | - 1934Q3 | 20 | 8b | ||||
| West Devon | 1997Q3 - 2007Q1 | 419 | |||||
| West Dorset | 1997Q2 - 2001Q3 | 428 | |||||
| West Firle | - 1837Q4 | 7 | |||||
| West Glamorgan | 1935Q1 - 1974Q1 | 11a | 8b | 8b | |||
| West Ham | - 1967Q4 | 12 | 4a | 5a | 5e | ||
| West Hartlepool (1938-1967) | 1938Q3 - 1967Q1 | 10a | 1a | 1a | |||
| West Lancashire | 1974Q2 - 2005Q2 | 40 | 590 | ||||
| West London | 1838Q2 - 1869Q4 | 2 | 1c | ||||
| West Oxfordshire | 1982Q2 - 2001Q3 | 20 | 706 | ||||
| West Somerset | 1974Q2 - 2007Q4 | 23 | 725 | ||||
| West Surrey | 1996Q4 - 2008Q3 | 761 | |||||
| West Ward | - 1937Q3 | 25 | 10b | ||||
| Westbourne | - 1935Q1 | 7 | 2b | ||||
| Westbury | - 1936Q1 | 8 | 5a | ||||
| Westbury on Severn | - 1937Q1 | 11 | 6a | ||||
| Westhampnett | - 1935Q1 | 7 | 2b | ||||
| Westminster (1870-1913) | 1870Q3 - 1913Q2 | 1a | |||||
| Westminster (1965 onw) | 1965Q2 -   | 5e | 15 | 258 | |||
| Westminster St Margaret | - 1870Q2 | 1 | 1a | ||||
| Westmorland North | 1937Q4 - 1974Q1 | 10b | 1b | 1b | |||
| Westmorland South | 1937Q4 - 1974Q1 | 10b | 1b | 1b | |||
| Weston super Mare (1936-1996) | 1936Q2 - 1996Q1 | 5c | 7c | 7c | 22 | 307 | |
| Wetherby | 1854Q3 - 1946Q4 | 9a | 2d | ||||
| Weymouth (1959-97) | 1959Q1 - 1997Q1 | 7c | 7c | 23 | 433 | ||
| Weymouth (to 1958) | - 1958Q4 | 8 | 5a | 6a | |||
| Wharfedale | 1861Q3 - 1981Q2 | 9a | 2d | 2d | 5 | ||
| Wheatenhurst | - 1937Q1 | 11 | 6a | ||||
| Whitby | - 1998Q3 | 24 | 9d | 1b | 1b | 2 | 660 |
| Whitchurch H | - 1932Q3 | 7 | 2c | ||||
| Whitchurch S (1853-1969) | 1853Q3 - 1969Q4 | 6a | 9a | 9a | |||
| Whitchurch S (Sep1837 only) | - 1837Q3 | 18 | |||||
| Whitechapel | - 1925Q4 | 2 | 1c | ||||
| Whitehaven | - 2011Q4 | 25 | 10b | 1a | 1a | 1 | 385 |
| Whittlesey | - 1974Q1 | 14 | 3b | 4a | 4a | ||
| Widnes | 1964Q4 - 1974Q1 | 10f | 10f | ||||
| Wigan | - 1995Q3 | 21 | 8c | 10f | 10f | 39 | 018 |
| Wigan & Leigh | 1995Q3 -   | 018 | |||||
| Wigton | - 2011Q4 | 25 | 10b | 1a | 1a | 1 | 386 |
| Willesden | 1909Q4 - 1965Q1 | 3a | 5f | ||||
| Williton | - 1936Q1 | 10 | 5c | ||||
| Wilton | - 1936Q1 | 8 | 5a | ||||
| Wimborne | - 1937Q1 | 8 | 5a | ||||
| Wincanton | - 1974Q1 | 10 | 5c | 7c | 7c | ||
| Winchcomb | - 1937Q1 | 11 | 6a | ||||
| Winchester | - 2008Q1 | 7 | 2c | 6b | 6b | 20 | 502 |
| Windsor | - 1974Q1 | 6 | 2c | 6a | 6a | ||
| Windsor & Maidenhead | 1974Q2 -   | 19 | 322 | ||||
| Winslow | - 1935Q1 | 6 | 3a | ||||
| Wirral (1837-1974) | - 1974Q1 | 19 | 8a | 10a | 10a | ||
| Wisbech | - 1980Q2 | 14 | 3b | 4a | 4a | 9 | |
| Witham | - 1880Q2 | 12 | 4a | ||||
| Witney | - 1982Q1 | 16 | 3a | 6b | 6b | 20 | |
| Woburn | - 1899Q3 | 6 | 3b | ||||
| Wokingham | - 1974Q1 | 6 | 2c | 6a | 6a | ||
| Wolstanton | - 1922Q2 | 17 | 6b | ||||
| Wolverhampton |   | 17 | 6b | 9b | 9b | 34 | 077 |
| Wood Green | 1947Q4 - 1965Q1 | 5f | |||||
| Woodbridge | - 1935Q1 | 12 | 4a | ||||
| Woodstock | - 1932Q3 | 16 | 3a | ||||
| Woolwich | 1868Q3 - 1969Q3 | 1d | 5d | 5e | |||
| Worcester | - 2006Q1 | 18 | 6c | 9d | 9d | 29 | 527 |
| Worksop | - 2005Q2 | 15 | 7b | 3c | 3c | 8 | 691 |
| Worsley (1841-49) | 1841Q2 - 1849Q4 | 20 | |||||
| Worth Valley | 1947Q1 - 1974Q1 | 2c | 2c | ||||
| Worthing (1837-69) | - 1869Q4 | 7 | 2b | ||||
| Worthing (1935 onw) | 1935Q2 - 2010Q1 | 2b | 5h | 5h | 18 | 786 | |
| Wortley (1838-1974) | 1838Q4 - 1974Q1 | 22 | 9c | 2d | 2d | ||
| Wrekin | 1974Q2 - 1998Q1 | 30 | 716 | ||||
| Wrexham (1837-1974) | - 1974Q1 | 27 | 11b | 8a | 8a | ||
| Wrexham (1996 onw) | 1996Q2 -   | 813 | |||||
| Wrexham Maelor | 1974Q2 - 1996Q1 | 24 | 813 | ||||
| Wycombe | - 1998Q4 | 6 | 3a | 6a | 6a | 19 | 327 |
| Yarmouth & Flegg | 1924Q1 - 1938Q4 | 4b | |||||
| Yarmouth (1837-1923) | - 1923Q4 | 13 | 4b | ||||
| Yeovil | - 2003Q1 | 10 | 5c | 7c | 7c | 23 | 726 |
| Ynys Mon | 1974Q2 -   | 25 | 857 | ||||
| York (1837-1937) | - 1937Q4 | 23 | 9d | ||||
| York (1938 onw) | 1938Q1 -   | 9c | 2d | 2d | 2 | 661 | |
| Ystradgynlais | 1934Q4 - 2009Q1 | 11b | 8a | 8a | 26 | 881 | |
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