| CA5 | Abbeytown | Cumbria |
| PE17 | Abbots Ripton | Cambridgeshire |
| DT3 | Abbotsbury | Dorset |
| SP11 | Abbotts Ann | Hampshire |
| LS25 | Aberford | West Yorkshire |
| OX14 | Abingdon | Oxfordshire |
| BS30 | Abson | Gloucestershire |
| BB5 | Accrington | Lancashire |
| WV6 | Ackleton | Shropshire |
| B27 | Acock's Green | West Midlands |
| W3 | Acton | Greater London |
| SY5 | Acton Burnell | Shropshire |
| ST20 | Adbaston | Staffordshire |
| LS29 | Addingham | West Yorkshire |
| BL6 | Adlington | Lancashire |
| L17 | Aigburth | Merseyside |
| PR8 | Ainsdale | Merseyside |
| L10 | Aintree | Merseyside |
| BD23 | Airton | North Yorkshire |
| WV7 | Albrighton | Wolverhampton |
| SG11 | Albury | Hertfordshire |
| B49 | Alcester | Warwickshire |
| HU11 | Aldbrough | E Riding of Yorkshire |
| HP23 | Aldbury | Hertfordshire |
| IP15 | Aldeburgh | Suffolk |
| NR34 | Aldeby | Norfolk |
| SK9 | Alderley Edge | Cheshire |
| CV37 | Alderminster | Warwickshire |
| GY9 | Alderney | Channel Islands |
| GU12 | Aldershot | Hampshire |
| GL20 | Alderton | Gloucestershire |
| CH3 | Aldford | Cheshire |
| TN25 | Aldington | Kent |
| WS9 | Aldridge | West Midlands |
| LN13 | Alford | Lincolnshire |
| DE55 | Alfreton | Derbyshire |
| BN26 | Alfriston | East Sussex |
| NE47 | Allendale | Northumberland |
| NE47 | Allenheads | Northumberland |
| L18 | Allerton | Merseyside |
| CA15 | Allonby | Cumbria |
| BS12 | Almonds-bury | Gloucestershire |
| NE66 | Alnmouth | Northumberland |
| NE66 | Alnwick | Northumberland |
| ST7 | Alsager | Cheshire |
| CA9 | Alston | Cumbria |
| DE6 | Alstonefield | Staffordshire |
| GU34 | Alton | Hampshire |
| WA14 | Altrincham | Greater Manchester |
| DE56 | Ambergate | Derbyshire |
| GL5 | Amberley | Gloucestershire |
| LA22 | Ambleside | Cumbria |
| HP7 | Amersham | Buckinghamshire |
| SP4 | Amesbury | Wiltshire |
| YO62 | Ampleforth | North Yorkshire |
| MK45 | Ampthill | Bedfordshire |
| SP10 | Andover | Hampshire |
| GL54 | Andoversford | Gloucestershire |
| LE7 | Anstey | Leicestershire |
| CA16 | Appleby-in-Westmorland | Cumbria |
| TN26 | Appledore | Kent |
| YO23 | Appleton Roebuck | North Yorkshire |
| WN6 | Appley Bridge | Lancashire |
| RG2 | Arborfield Cross | Berkshire |
| RH17 | Ardingly | West Sussex |
| SG15 | Arlesey | Bedfordshire |
| CW9 | Arley | Cheshire |
| CA4 | Armathwaite | Cumbria |
| WS15 | Armitage | Staffordshire |
| BD23 | Arncliffe | North Yorkshire |
| NG5 | Arnold | Nottinghamshire |
| LA5 | Arnside | Cumbria |
| PO30 | Arreton | Isle of Wight |
| SG8 | Arrington | Cambridgeshire |
| N18 | Arundel | West Sussex |
| SL5 | Ascot | Berkshire |
| TN15 | Ash | Kent |
| CT3 | Ash | Kent |
| TQ13 | Ashburton | Devon |
| EX20 | Ashbury | Devon |
| LE65 | Ashby de la Zouch | Leicestershire |
| TA7 | Ashcott | Somerset |
| CB10 | Ashdon | Essex |
| TN24 | Ashford | Kent |
| TW15 | Ashford | Surrey |
| NE63 | Ashington | Northumberland |
| RH20 | Ashington | West Sussex |
| TF9 | Ashley | Staffordshire |
| EX18 | Ashreigney | Devon |
| KT21 | Ashtead | Surrey |
| SN6 | Ashton Keynes | Wiltshire |
| M33 | Ashton upon Mersey | Greater Manchester |
| WN4 | Ashton-in-Makerfield | Greater Manchester |
| SO40 | Ashurst | Hampshire |
| EX21 | Ashwater | Devon |
| SG7 | Ashwell | Hertfordshire |
| PE32 | Ashwicken | Norfolk |
| CA5 | Aspatria | Cumbria |
| OX8 | Asthall Leigh | Oxfordshire |
| WA7 | Aston | Cheshire |
| CW5 | Aston | Cheshire |
| HP22 | Aston Abbotts | Buckinghamshire |
| GL20 | Aston Cross | Gloucestershire |
| B96 | Astwood Bank | Hereford and Worcester |
| CV9 | Atherstone | Warwickshire |
| M46 | Atherton | Greater Manchester |
| CW3 | Audlem | Cheshire |
| LA2 | Aughton | Lancashire |
| L39 | Aughton | Lancashire |
| SN8 | Avebury | Wiltshire |
| BS11 | Avonmouth | Bristol and Avon |
| BS26 | Axbridge | Somerset |
| EX13 | Axminster | Devon |
| DL5 | Aycliffe | County Durham |
| HP20 | Aylesbury | Buckinghamshire |
| DL8 | Aysgarth | North Yorkshire |
| NE23 | Backworth | Tyne and Wear |
| IP14 | Bacton | Suffolk |
| OL13 | Bacup | Lancashire |
| TN14 | Badgers Mount | Kent |
| IP13 | Badingham | Suffolk |
| GL9 | Badminton | Gloucestershire |
| GU19 | Bagshot | Surrey |
| LE67 | Bagworth | Leicestershire |
| DE45 | Bakewell | Derbyshire |
| RH17 | Balcombe | West Sussex |
| SG7 | Baldock | Hertfordshire |
| SW12 | Balham | Greater London |
| BA6 | Baltonsborough | Somerset |
| NE69 | Bamburgh | Northumberland |
| S30 | Bamford | Derbyshire |
| CA10 | Bampton | Cumbria |
| EX16 | Bampton | Devon |
| OX18 | Bampton | Oxfordshire |
| OX16 | Banbury | Oxfordshire |
| BS24 | Banwell | Somerset |
| LA6 | Barbon | Cumbria |
| BN8 | Barcombe | East Sussex |
| LN3 | Bardney | Lincolnshire |
| LA12 | Bardsea | Cumbria |
| LS17 | Bardsey | West Yorkshire |
| CV35 | Barford | Warwickshire |
| CT4 | Barham | Kent |
| IG11 | Barking | Greater London |
| RM8 | Barking & Dagenham | Greater London |
| IG6 | Barkingside | Greater London |
| LS24 | Barkston Ash | North Yorkshire |
| SG8 | Barkway | Hertfordshire |
| ST12 | Barlaston | Staffordshire |
| DL12 | Barnard Castle | County Durham |
| NR34 | Barnby | Suffolk |
| EN5 | Barnet | Greater London |
| NR9 | Barnham Broom | Norfolk |
| BB8 | Barnoldswick | Lancashire |
| N1 | Barnsbury | Greater London |
| S70 | Barnsley | South Yorkshire |
| EX31 | Barnstaple | Devon |
| B45 | Barnt Green | Hereford and Worcester |
| CW8 | Barnton | Cheshire |
| LA14 | Barrow-in-Furness | Cumbria |
| DL10 | Barton | North Yorkshire |
| MK45 | Barton-le-Clay | Bedfordshire |
| GL56 | Barton-on-the-Heath | Warwickshire |
| DE13 | Barton-under-Needwood | Staffordshire |
| DN18 | Barton-upon-Humber | Lincolnshire |
| SY4 | Baschurch | Shropshire |
| SS14 | Basildon | Essex |
| RG21 | Basingstoke | Hampshire |
| DE45 | Baslow | Derbyshire |
| CA12 | Bassenthwaite | Cumbria |
| LN5 | Bassingham | Lincolnshire |
| BA1 | Bath | Somerset |
| WF17 | Batley | West Yorkshire |
| SW11 | Battersea | Greater London |
| TN33 | Battle | East Sussex |
| LN9 | Baumber | Lincolnshire |
| NR20 | Bawdeswell | Norfolk |
| SY3 | Bayston Hill | Shropshire |
| W2 | Bayswater | Greater London |
| HP9 | Beaconsfield | Buckinghamshire |
| EX19 | Beaford | Devon |
| DT8 | Beaminster | Dorset |
| DH9 | Beamish | County Durham |
| DH7 | Bearpark | County Durham |
| BH11 | Bearwood | Dorset |
| SO42 | Beaulieu | Hampshire |
| EX21 | Beaworthy | Devon |
| L63 | Bebington | Merseyside |
| NR34 | Beccles | Suffolk |
| BR3 | Beckenham | Greater London |
| CA21 | Beckermet | Cumbria |
| TN31 | Beckley | East Sussex |
| DL8 | Bedale | North Yorkshire |
| MK40 | Bedford | Bedfordshire |
| NE22 | Bedlington | Northumberland |
| BS16 | Bedminster | Bristol and Avon |
| BS3 | Bedminster | Bristol and Avon |
| CV12 | Bedworth | Warwickshire |
| YO25 | Beeford | E Riding of Yorkshire |
| DY9 | Belbroughton | Hereford and Worcester |
| SW1 | Belgravia | Greater London |
| NE48 | Bellingham | Northumberland |
| DE56 | Belper | Derbyshire |
| NE20 | Belsay | Northumberland |
| LE12 | Belton | Leicestershire |
| PO35 | Bembridge | Isle of Wight |
| TN17 | Benenden | Kent |
| YO30 | Beningbrough | North Yorkshire |
| SG2 | Benington | Hertfordshire |
| GL51 | Bentham | Gloucestershire |
| GU10 | Bentley | Hampshire |
| EX32 | Benton | Devon |
| PE15 | Benwick | Cambridgeshire |
| BH20 | Bere Regis | Dorset |
| HP4 | Berkhamsted | Hertfordshire |
| CV7 | Berkswell | West Midlands |
| SE1 | Bermondsey | Greater London |
| SE16 | Bermondsey | Greater London |
| TD15 | Berwick-upon-Tweed | Northumberland |
| RH3 | Betchworth | Surrey |
| TN26 | Bethersden | Kent |
| CW3 | Betley | Staffordshire |
| DY12 | Bewdley | Hereford and Worcester |
| TN40 | Bexhill | East Sussex |
| DA6 | Bexleyheath | Greater London |
| IP30 | Beyton | Suffolk |
| GL7 | Bibury | Gloucestershire |
| OX6 | Bicester | Oxfordshire |
| TQ12 | Bickington | Devon |
| EX31 | Bickington | Devon |
| PL6 | Bickleigh | Devon |
| EX16 | Bickleigh | Devon |
| MK40 | Biddenham | Bedfordshire |
| EX39 | Bideford | Devon |
| B50 | Bidford-on-Avon | Warwickshire |
| TQ7 | Bigbury | Devon |
| TQ7 | Bigbury-on-Sea | Devon |
| TN16 | Biggin Hill | Greater London |
| SG18 | Biggleswade | Bedfordshire |
| IP7 | Bildeston | Suffolk |
| CM11 | Billericay | Essex |
| LE7 | Billesdon | Leicestershire |
| NG34 | Billingborough | Lincolnshire |
| WN5 | Billinge | Merseyside |
| LN4 | Billinghay | Lincolnshire |
| RH14 | Billingshurst | West Sussex |
| WV14 | Bilston | West Midlands |
| LN3 | Binbrook | Lincolnshire |
| NG13 | Bingham | Nottinghamshire |
| BD16 | Bingley | West Yorkshire |
| NR21 | Binham | Norfolk |
| PO20 | Birdham | West Sussex |
| PR8 | Birkdale | Merseyside |
| CH41 | Birkenhead | Merseyside |
| CH42 | Birkenhead | Merseyside |
| B1 | Birmingham | West Midlands |
| B5 | Birmingham | West Midlands |
| B4 | Birmingham | West Midlands |
| B2 | Birmingham | West Midlands |
| B3 | Birmingham | West Midlands |
| DH3 | Birtley | Tyne and Wear |
| WR10 | Bishampton | Hereford and Worcester |
| DL14 | Bishop Auckland | County Durham |
| HG3 | Bishop Monkton | North Yorkshire |
| LN2 | Bishop Norton | Lincolnshire |
| YO4 | Bishop Wilton | E Riding of Yorkshire |
| SY9 | Bishop's Castle | Shropshire |
| DT9 | Bishop's Caundle | Dorset |
| GL52 | Bishop's Cleeve | Gloucestershire |
| TA4 | Bishop's Lydeard | Somerset |
| EX36 | Bishop's Nympton | Devon |
| CM23 | Bishop's Stortford | Hertfordshire |
| SO32 | Bishop's Waltham | Hampshire |
| EC2 | Bishopsgate | Greater London |
| GL6 | Bisley | Gloucestershire |
| BS30 | Bitton | Gloucestershire |
| EX21 | Black Torrington | Devon |
| TQ9 | Blackawton | Devon |
| BB1 | Blackburn | Lancashire |
| SO45 | Blackfield | Hampshire |
| B65 | Blackheath | West Midlands |
| GU33 | Blackmoor | Hampshire |
| CM4 | Blackmore | Essex |
| FY1 | Blackpool | Lancashire |
| BS18 | Blagdon | Somerset |
| TA3 | Blagdon Hill | Somerset |
| NE4 | Blakelaw | Tyne and Wear |
| GL15 | Blakeney | Gloucestershire |
| NN12 | Blakesley | Northamptonshire |
| DH8 | Blanchland | Northumberland |
| DT11 | Blandford Forum | Dorset |
| NE21 | Blaydon | Tyne and Wear |
| BS24 | Bleadon | Somerset |
| CT2 | Blean | Kent |
| HP14 | Bledlow Ridge | Buckinghamshire |
| OX11 | Blewbury | Oxfordshire |
| NG21 | Blidworth | Nottinghamshire |
| NN7 | Blisworth | Northamptonshire |
| GL56 | Blockley | Gloucestershire |
| WC1 | Bloomsbury | Greater London |
| WS3 | Bloxwich | West Midlands |
| LS21 | Blubberhouse | West Yorkshire |
| NE24 | Blyth | Northumberland |
| S81 | Blyth | Nottinghamshire |
| IP19 | Blythburgh | Suffolk |
| ST11 | Blythe Bridge | Staffordshire |
| DY7 | Bobbington | Staffordshire |
| HR1 | Bodenham | Hereford and Worcester |
| PL31 | Bodmin | Cornwall |
| PO21 | Bognor Regis | West Sussex |
| NE36 | Boldon | Tyne and Wear |
| SK10 | Bollington | Cheshire |
| RH17 | Bolney | West Sussex |
| BL1 | Bolton | Greater Manchester |
| BD23 | Bolton Abbey | North Yorkshire |
| BB7 | Bolton by Bowland | Lancashire |
| SY4 | Bomere Heath | Shropshire |
| L20 | Bootle | Merseyside |
| GU35 | Bordon | Hampshire |
| TN15 | Borough Green | Kent |
| YO5 | Boroughbridge | North Yorkshire |
| CA12 | Borrowdale | Cumbria |
| HR8 | Bosbury | Hereford and Worcester |
| PL35 | Boscastle | Cornwall |
| BH5 | Boscombe | Dorset |
| PO18 | Bosham | West Sussex |
| PE21 | Boston | Lincolnshire |
| LS23 | Boston Spa | West Yorkshire |
| IP22 | Botesdale | Suffolk |
| SO30 | Botley | Hampshire |
| NG13 | Bottesford | Leicestershire |
| TN25 | Boughton Aluph | Kent |
| ME17 | Boughton Green | Kent |
| TN25 | Boughton Lees | Kent |
| ME17 | Boughton Malherbe | Kent |
| ME13 | Boughton Street | Kent |
| PE10 | Bourne | Lincolnshire |
| SL8 | Bourne End | Buckinghamshire |
| BH3 | Bournemouth | Dorset |
| BH2 | Bournemouth | Dorset |
| SP8 | Bourton | Dorset |
| GL54 | Bourton-on-the-Water | Gloucestershire |
| TQ13 | Bovey Tracey | Devon |
| EX17 | Bow | Devon |
| E3 | Bow | Greater London |
| WA14 | Bowdon | Greater Manchester |
| N22 | Bowes Park | Greater London |
| N13 | Bowes Park | Greater London |
| SN13 | Box | Wiltshire |
| RG20 | Boxford | Berkshire |
| CO10 | Boxford | Suffolk |
| CO4 | Boxted | Essex |
| NN13 | Brackley | Northamptonshire |
| RG42 | Bracknell | Berkshire |
| RG12 | Bracknell | Berkshire |
| SN15 | Bradenstoke | Wiltshire |
| RG7 | Bradfield | Berkshire |
| BD1 | Bradford | West Yorkshire |
| BA15 | Bradford-on-Avon | Wiltshire |
| TA4 | Bradford-on-Tone | Somerset |
| PO36 | Brading | Isle of Wight |
| EX22 | Bradworthy | Devon |
| DE6 | Brailsford | Derbyshire |
| CM7 | Braintree | Essex |
| SO51 | Braishfield | Hampshire |
| CA12 | Braithwaite | Cumbria |
| SO24 | Bramdean | Hampshire |
| IP19 | Bramfield | Suffolk |
| SK7 | Bramhall | Greater Manchester |
| NR34 | Brampton | Suffolk |
| PE31 | Brancaster | Norfolk |
| YO61 | Brandsby | North Yorkshire |
| EX12 | Branscombe | Devon |
| BH23 | Bransgore | Hampshire |
| BA13 | Bratton | Wiltshire |
| EX20 | Bratton Clovelly | Devon |
| EX33 | Braunton | Devon |
| EX32 | Brayford | Devon |
| SP6 | Breamore | Hampshire |
| TA8 | Brean | Somerset |
| SK6 | Bredbury | Greater Manchester |
| TN31 | Brede | East Sussex |
| GL20 | Bredon | Hereford and Worcester |
| TN12 | Brenchley | Kent |
| EX35 | Brendon | Devon |
| TA9 | Brent Knoll | Somerset |
| SG9 | Brent Pelham | Hertfordshire |
| IP22 | Bressingham | Norfolk |
| ST19 | Brewood | Staffordshire |
| EX20 | Bridestowe | Devon |
| HR4 | Bridge Sollers | Hereford and Worcester |
| CW5 | Bridgemere | Cheshire |
| EX22 | Bridgerule | Devon |
| TA6 | Bridgwater | Somerset |
| YO16 | Bridlington | E Riding of Yorkshire |
| DT6 | Bridport | Dorset |
| DY5 | Brierley Hill | West Midlands |
| DN20 | Brigg | Lincolnshire |
| HD6 | Brighouse | West Yorkshire |
| TN32 | Brightling | East Sussex |
| CO7 | Brightlingsea | Essex |
| BN2 | Brighton | East Sussex |
| NN14 | Brigstock | Northamptonshire |
| HP18 | Brill | Buckinghamshire |
| SY8 | Brimfield | Hereford and Worcester |
| SN15 | Brinkworth | Wiltshire |
| PR6 | Brinscall | Lancashire |
| BS1 | Bristol | Bristol and Avon |
| BS6 | Bristol | Bristol and Avon |
| TQ5 | Brixham | Devon |
| SW2 | Brixton | Greater London |
| SP5 | Broad Chalke | Wiltshire |
| SN4 | Broad Hinton | Wiltshire |
| EX14 | Broadhembury | Devon |
| BH18 | Broadstone | Dorset |
| WR12 | Broadway | Hereford and Worcester |
| DT8 | Broadwindsor | Dorset |
| SO42 | Brockenhurst | Hampshire |
| SY7 | Brockton | Shropshire |
| SY5 | Brockton | Shropshire |
| TF13 | Brockton | Shropshire |
| TF11 | Brockton | Shropshire |
| L62 | Bromborough | Merseyside |
| SY8 | Bromfield | Shropshire |
| SN15 | Bromham | Wiltshire |
| BR1 | Bromley | Greater London |
| TA22 | Brompton Regis | Somerset |
| HR8 | Bromsberrow Heath | Gloucestershire |
| B61 | Bromsgrove | Hereford and Worcester |
| HR7 | Bromyard | Hereford and Worcester |
| NR15 | Brooke | Norfolk |
| TN29 | Brookland | Kent |
| GU24 | Brookwood | Surrey |
| CA17 | Brough | Cumbria |
| SO20 | Broughton | Hampshire |
| PR3 | Broughton | Lancashire |
| LA20 | Broughton in Furness | Cumbria |
| WS8 | Brownhills | West Midlands |
| CH3 | Broxton | Cheshire |
| BA10 | Bruton | Somerset |
| YO8 | Bubwith | E Riding of Yorkshire |
| TQ11 | Buckfastleigh | Devon |
| IG9 | Buckhurst Hill | Essex |
| MK18 | Buckingham | Buckinghamshire |
| SN7 | Buckland | Oxfordshire |
| DT2 | Buckland Newton | Dorset |
| TA20 | Buckland St Mary | Somerset |
| SO42 | Bucklers Hard | Hampshire |
| SY7 | Bucknell | Shropshire |
| EX23 | Bude | Cornwall |
| EX9 | Budleigh Salterton | Devon |
| SP4 | Bulford Camp | Wiltshire |
| SG3 | Bull's Green | Hertfordshire |
| NN17 | Bulwick | Northamptonshire |
| CW6 | Bunbury | Cheshire |
| NR35 | Bungay | Suffolk |
| NR16 | Bunwell | Norfolk |
| SN8 | Burbage | Wiltshire |
| CO8 | Bures | Suffolk |
| OX18 | Burford | Oxfordshire |
| RH15 | Burgess Hill | West Sussex |
| CA5 | Burgh by Sands | Cumbria |
| KT20 | Burgh Heath | Surrey |
| LN3 | Burgh on Bain | Lincolnshire |
| RG20 | Burgh-clere | Hampshire |
| RG7 | Burghfield Common | Berkshire |
| BH24 | Burley | Hampshire |
| HR1 | Burley Gate | Hereford and Worcester |
| LS29 | Burley in Wharfdale | West Yorkshire |
| YO8 | Burn | North Yorkshire |
| SL1 | Burnham | Buckinghamshire |
| PE31 | Burnham Market | Norfolk |
| CM0 | Burnham-on-Crouch | Essex |
| TA8 | Burnham-on-Sea | Somerset |
| BB11 | Burnley | Lancashire |
| NE16 | Burnopfield | County Durham |
| BD23 | Burnsall | North Yorkshire |
| WS7 | Burntwood | Staffordshire |
| TA7 | Burrow Bridge | Somerset |
| L40 | Burscough | Lancashire |
| SO31 | Bursledon | Hampshire |
| YO25 | Burton Agnes | E Riding of Yorkshire |
| DT6 | Burton Bradstock | Dorset |
| NG14 | Burton Joyce | Nottinghamshire |
| NN15 | Burton Latimer | Northamptonshire |
| WV16 | Burwarton | Shropshire |
| TN19 | Burwash | East Sussex |
| RH20 | Bury | West Sussex |
| IP33 | Bury St Edmunds | Suffolk |
| YO17 | Burythorpe | North Yorkshire |
| WD2 | Bushey Heath | Hertfordshire |
| CA13 | Buttermere | Cumbria |
| TN22 | Buxted | East Sussex |
| SK17 | Buxton | Derbyshire |
| NR10 | Buxton | Norfolk |
| NN11 | Byfield | Northamptonshire |
| KT14 | Byfleet | Surrey |
| NE6 | Byker | Tyne and Wear |
| PE18 | Bythorn | Cambridgeshire |
| SO40 | Cadnam | Hampshire |
| LN7 | Caistor | Lincolnshire |
| PO30 | Calbourne | Isle of Wight |
| CA7 | Caldbeck | Cumbria |
| CH48 | Caldy | Merseyside |
| PL17 | Callington | Cornwall |
| SN11 | Calne | Wiltshire |
| NR11 | Calthorpe | Norfolk |
| CA11 | Calthwaite | Cumbria |
| SY13 | Calverhall | Shropshire |
| TN31 | Camber | East Sussex |
| GU15 | Camberley | Surrey |
| SE5 | Camberwell | Greater London |
| YO8 | Camblesforth | North Yorkshire |
| TR14 | Camborne | Cornwall |
| CB5 | Cambridge | Cambridgeshire |
| GL2 | Cambridge | Gloucestershire |
| NW3 | Camden | Greater London |
| NW1 | Camden Town | Greater London |
| PL32 | Camelford | Cornwall |
| SE16 | Canary Wharf | Greater London |
| E14 | Canary Wharf | Greater London |
| SS4 | Canewdon | Essex |
| BH13 | Canford Cliffs | Dorset |
| WS11 | Cannock | Staffordshire |
| HR4 | Canon Pyon | Hereford and Worcester |
| N1 | Canonbury | Greater London |
| SS8 | Canvey Island | Essex |
| PL15 | Canworthy Water | Cornwall |
| MK44 | Cardington | Bedfordshire |
| PL30 | Cardinham | Cornwall |
| HR2 | Carey | Hereford and Worcester |
| CA1 | Carlisle | Cumbria |
| LA5 | Carnforth | Lancashire |
| DE4 | Carsington | Derbyshire |
| OX18 | Carterton | Oxfordshire |
| LA11 | Cartmel | Cumbria |
| PE32 | Castle Acre | Norfolk |
| B36 | Castle Bromwich | West Midlands |
| NG33 | Castle Bytham | Lincolnshire |
| BA7 | Castle Cary | Somerset |
| SN14 | Castle Combe | Wiltshire |
| TS27 | Castle Eden | County Durham |
| PE31 | Castle Rising | Norfolk |
| WF10 | Castleford | West Yorkshire |
| YO21 | Castleton | North Yorkshire |
| NR17 | Caston | Norfolk |
| PE5 | Castor | Cambridgeshire |
| CR3 | Caterham | Surrey |
| SE6 | Catford | Greater London |
| PR4 | Catforth | Lancashire |
| LA2 | Caton | Lancashire |
| NG23 | Caunton | Nottinghamshire |
| YO8 | Cawood | North Yorkshire |
| NR10 | Cawston | Norfolk |
| CB3 | Caxton | Cambridgeshire |
| DT2 | Cerne Abbas | Dorset |
| DY10 | Chaddesley Corbett | Hereford and Worcester |
| RG20 | Chaddleworth | Berkshire |
| OX7 | Chadlington | Oxfordshire |
| TQ13 | Chagford | Devon |
| PO38 | Chale Green | Isle of Wight |
| HP8 | Chalfont St Giles | Buckinghamshire |
| TN25 | Challock | Kent |
| SO53 | Chandler's Ford | Hampshire |
| CV10 | Chapel End | West Midlands |
| SK23 | Chapel-en-le-Frith | Derbyshire |
| BA13 | Chapmanslade | Wiltshire |
| TA20 | Chard | Somerset |
| TN27 | Charing | Kent |
| OX7 | Charlbury | Oxfordshire |
| TA11 | Charlton Mackrell | Somerset |
| OX5 | Charlton-on-Otmoor | Oxfordshire |
| DT6 | Charmouth | Dorset |
| IP13 | Charsfield | Suffolk |
| CT4 | Chartham | Kent |
| ME4 | Chatham | Kent |
| NE67 | Chathill | Northumberland |
| PE16 | Chatteris | Cambridgeshire |
| NE66 | Chatton | Northumberland |
| ST10 | Cheadle | Staffordshire |
| SK8 | Cheadle Hulme | Greater Manchester |
| RG8 | Checkendon | Oxfordshire |
| BS27 | Cheddar | Somerset |
| LU7 | Cheddington | Buckinghamshire |
| SK10 | Chelford | Cheshire |
| CM1 | Chelmsford | Essex |
| SW3 | Chelsea | Greater London |
| SW10 | Chelsea | Greater London |
| GL52 | Cheltenham | Gloucestershire |
| GL50 | Cheltenham | Gloucestershire |
| RH17 | Chelwood Gate | East Sussex |
| EX6 | Cheriton Bishop | Devon |
| EX17 | Cheriton Fitzpaine | Devon |
| KT16 | Chertsey | Surrey |
| HP5 | Chesham | Buckinghamshire |
| WS6 | Cheslyn Hay | Staffordshire |
| KT9 | Chessington | Greater London |
| CH1 | Chester | Cheshire |
| DH3 | Chester-le-Street | County Durham |
| S40 | Chesterfield | Derbyshire |
| CT5 | Chestfield | Kent |
| TF9 | Cheswardine | Shropshire |
| IP29 | Chevington | Suffolk |
| BS18 | Chew Magna | Bristol and Avon |
| BA3 | Chewton Mendip | Somerset |
| PO19 | Chichester | West Sussex |
| BN8 | Chiddingly | East Sussex |
| DT6 | Chideock | Dorset |
| RG20 | Chieveley | Berkshire |
| SO20 | Chilbolton | Hampshire |
| DT11 | Child Okeford | Dorset |
| TF9 | Child's Ercall | Shropshire |
| OX12 | Childrey | Oxfordshire |
| L16 | Childwall | Merseyside |
| CT4 | Chilham | Kent |
| PL16 | Chillaton | Devon |
| PO30 | Chillerton | Isle of Wight |
| TA7 | Chilton Polden | Somerset |
| E4 | Chingford | Greater London |
| SK23 | Chinley | Derbyshire |
| SN15 | Chippenham | Wiltshire |
| PR3 | Chipping | Lancashire |
| OX7 | Chipping Norton | Oxfordshire |
| BS37 | Chipping Sodbury | Bristol and Avon |
| OX17 | Chipping Warden | Northamptonshire |
| SY15 | Chirbury | Shropshire |
| SN10 | Chirton | Wiltshire |
| TA14 | Chiselborough | Somerset |
| BR7 | Chislehurst | Greater London |
| CT3 | Chislet | Kent |
| W4 | Chiswick | Greater London |
| EX37 | Chittlehamholt | Devon |
| TQ7 | Chivelstone | Devon |
| GU24 | Chobham | Surrey |
| SP4 | Cholderton | Wiltshire |
| HP23 | Cholesbury | Buckinghamshire |
| OX10 | Cholsey | Oxfordshire |
| PR7 | Chorley | Lancashire |
| WD3 | Chorleywood | Hertfordshire |
| CW2 | Chorlton | Cheshire |
| SG8 | Chrishall | Essex |
| PE14 | Christchurch | Cambridgeshire |
| BH23 | Christchurch | Dorset |
| TQ13 | Chudleigh | Devon |
| EX18 | Chulmleigh | Devon |
| CW5 | Church Minshull | Cheshire |
| SY6 | Church Stretton | Shropshire |
| GL3 | Churchdown | Gloucestershire |
| BS19 | Churchill | Somerset |
| TA3 | Churchstanton | Somerset |
| PR9 | Churchtown | Merseyside |
| TQ5 | Churston Ferrers | Devon |
| GL14 | Cinderford | Gloucestershire |
| GL7 | Cirencester | Gloucestershire |
| W2 | City of Westminster | Greater London |
| CO15 | Clacton-on-Sea | Essex |
| OX18 | Clanfield | Oxfordshire |
| LA2 | Clapham | North Yorkshire |
| E5 | Clapton | Greater London |
| CO10 | Clare | Suffolk |
| CV35 | Claverdon | Warwickshire |
| CB11 | Clavering | Essex |
| WV5 | Claverley | Shropshire |
| EX16 | Clayhanger | Devon |
| CA25 | Cleator Moor | Cumbria |
| BD19 | Cleckheaton | West Yorkshire |
| DN35 | Cleethorpes | Lincolnshire |
| DY14 | Cleobury Mortimer | Shropshire |
| EC1 | Clerkenwell | Greater London |
| BS21 | Clevedon | Somerset |
| FY5 | Cleveleys | Lancashire |
| NR25 | Cley next the Sea | Norfolk |
| HR3 | Clifford | Hereford and Worcester |
| BS16 | Clifton | Bristol and Avon |
| BS8 | Clifton | Bristol and Avon |
| B79 | Clifton Campville | Staffordshire |
| OX14 | Clifton Hampden | Oxfordshire |
| LE16 | Clipston | Northamptonshire |
| BB7 | Clitheroe | Lancashire |
| SY4 | Clive | Shropshire |
| NN14 | Clopton | Northamptonshire |
| EX39 | Clovelly | Devon |
| DY14 | Clows Top | Hereford and Worcester |
| SY7 | Clun | Shropshire |
| PL15 | Coad's Green | Cornwall |
| TF8 | Coalbrookdale | Shropshire |
| LE67 | Coalville | Leicestershire |
| GL53 | Coberley | Gloucestershire |
| KT11 | Cobham | Surrey |
| CA13 | Cockermouth | Cumbria |
| DL13 | Cockfield | County Durham |
| IP30 | Cockfield | Suffolk |
| SY12 | Cockshutt | Shropshire |
| IP6 | Coddenham | Suffolk |
| BA12 | Codford St Mary | Wiltshire |
| WV8 | Codsall | Staffordshire |
| CO6 | Coggeshall | Essex |
| EX10 | Colaton Raleigh | Devon |
| CO1 | Colchester | Essex |
| B46 | Coleshill | Warwickshire |
| NW9 | Colindale | Greater London |
| TN12 | Collier Street | Kent |
| LS22 | Collingham | West Yorkshire |
| MK44 | Colmworth | Bedfordshire |
| GL7 | Coln St Aldwyns | Gloucestershire |
| BB8 | Colne | Lancashire |
| WR13 | Colwall | Hereford and Worcester |
| EX13 | Colyton | Devon |
| BA2 | Combe Down | Bristol and Avon |
| EX34 | Combe Martin | Devon |
| CW9 | Comberbach | Cheshire |
| CB3 | Comberton | Cambridgeshire |
| TA5 | Combwich | Somerset |
| RG20 | Compton | Berkshire |
| PO18 | Compton | West Sussex |
| BS18 | Compton Dando | Bristol and Avon |
| IP31 | Coney Weston | Suffolk |
| RH14 | Coneyhurst | West Sussex |
| CW12 | Congleton | Cheshire |
| LN4 | Coningsby | Lincolnshire |
| DN12 | Conisbrough | South Yorkshire |
| LA21 | Coniston | Cumbria |
| DH8 | Consett | County Durham |
| TR11 | Constantine | Cornwall |
| RH13 | Coolham | West Sussex |
| SP5 | Coombe Bissett | Wiltshire |
| GL19 | Coombe Hill | Gloucestershire |
| IP8 | Copdock | Suffolk |
| HG3 | Copgrove | North Yorkshire |
| EX17 | Copplestone | Devon |
| PR7 | Coppull | Lancashire |
| NE45 | Corbridge | Northumberland |
| NN17 | Corby | Northamptonshire |
| NG33 | Corby Glen | Lincolnshire |
| BH20 | Corfe Castle | Dorset |
| PL21 | Cornwood | Devon |
| DN21 | Corringham | Lincolnshire |
| DT2 | Corscombe | Dorset |
| SN13 | Corsham | Wiltshire |
| DT9 | Corton Denham | Somerset |
| PO6 | Cosham | Hampshire |
| WR6 | Cotheridge | Hereford and Worcester |
| CB4 | Cottenham | Cambridgeshire |
| SG9 | Cottered | Hertfordshire |
| PE8 | Cotterstock | Northamptonshire |
| WC2 | Covent Garden | Greater London |
| CV1 | Coventry | West Midlands |
| TN8 | Cowden | Kent |
| RH13 | Cowfold | West Sussex |
| CM14 | Coxtie Green | Essex |
| YO61 | Coxwold | North Yorkshire |
| BD23 | Cracoe | North Yorkshire |
| EX15 | Craddock | Devon |
| B63 | Cradley | West Midlands |
| NE23 | Cramlington | Northumberland |
| BH21 | Cranborne | Dorset |
| TN17 | Cranbrook | Kent |
| GU6 | Cranleigh | Surrey |
| BA4 | Cranmore | Somerset |
| TR8 | Crantock | Cornwall |
| NG34 | Cranwell | Lincolnshire |
| SY7 | Craven Arms | Shropshire |
| NE40 | Crawcrook | Tyne and Wear |
| RH11 | Crawley | West Sussex |
| NN6 | Creaton | Northamptonshire |
| EX17 | Crediton | Devon |
| SY5 | Cressage | Shropshire |
| TA18 | Crewkerne | Somerset |
| NN6 | Crick | Northamptonshire |
| SN6 | Cricklade | Wiltshire |
| NW2 | Cricklewood | Greater London |
| TN8 | Crockham Hill | Kent |
| CA4 | Croglin | Cumbria |
| SG2 | Cromer | Hertfordshire |
| DL15 | Crook | County Durham |
| TD12 | Crookham | Northumberland |
| LA7 | Crooklands | Cumbria |
| OX17 | Cropredy | Oxfordshire |
| BD20 | Cross Hills | North Yorkshire |
| SY5 | Cross Houses | Shropshire |
| LA8 | Crosthwaite | Cumbria |
| PR5 | Croston | Lancashire |
| N8 | Crouch End | Greater London |
| NN13 | Croughton | Northamptonshire |
| TN6 | Crowborough | East Sussex |
| TA4 | Crowcombe | Somerset |
| TN33 | Crowhurst | East Sussex |
| OX10 | Crowmarsh | Oxfordshire |
| RG45 | Crowthorne | Berkshire |
| PE19 | Croxton | Cambridgeshire |
| EX33 | Croyde | Devon |
| CR1 | Croydon | Greater London |
| CR0 | Croydon | Greater London |
| SN16 | Crudwell | Wiltshire |
| EN6 | Cuffley | Hertfordshire |
| WA3 | Culcheth | Cheshire |
| IP28 | Culford | Suffolk |
| CA10 | Culgaith | Cumbria |
| BD13 | Cullingworth | West Yorkshire |
| EX15 | Cullompton | Devon |
| NG32 | Culverthorpe | Lincolnshire |
| OX2 | Cumnor | Oxfordshire |
| B76 | Curdworth | Warwickshire |
| WR9 | Cutnall Green | Hereford and Worcester |
| RM10 | Dagenham | Greater London |
| CA5 | Dalston | Cumbria |
| E8 | Dalston | Greater London |
| CM3 | Danbury | Essex |
| SG12 | Dane End | Hertfordshire |
| RH17 | Danehill | East Sussex |
| WS10 | Darlaston | West Midlands |
| DE4 | Darley Dale | Derbyshire |
| DL3 | Darlington | Darlington |
| DA1 | Dartford | Kent |
| TQ6 | Dartmouth | Devon |
| S75 | Darton | South Yorkshire |
| BB3 | Darwen | Lancashire |
| NN11 | Daventry | Northamptonshire |
| EX7 | Dawlish | Devon |
| CT14 | Deal | Kent |
| IP14 | Debenham | Suffolk |
| OX15 | Deddington | Oxfordshire |
| GU16 | Deepcut | Surrey |
| PE11 | Deeping St Nicholas | Lincolnshire |
| UB9 | Denham | Buckinghamshire |
| LA10 | Dent | Cumbria |
| SE14 | Deptford | Greater London |
| SE8 | Deptford | Greater London |
| DE1 | Derby | Derbyshire |
| PE31 | Dersingham | Norfolk |
| LE9 | Desford | Leicestershire |
| PL1 | Devonport | Devon |
| TR3 | Devoran | Cornwall |
| WF12 | Dewsbury | West Yorkshire |
| OX11 | Didcot | Oxfordshire |
| GL9 | Didmarton | Gloucestershire |
| LE16 | Dingley | Northamptonshire |
| S31 | Dinnington | South Yorkshire |
| DH9 | Dipton | County Durham |
| SK12 | Disley | Cheshire |
| IP22 | Diss | Norfolk |
| BA4 | Ditcheat | Somerset |
| TQ6 | Dittisham | Devon |
| WV16 | Ditton Priors | Shropshire |
| PL14 | Dobwalls | Cornwall |
| PE31 | Docking | Norfolk |
| ME9 | Doddington | Kent |
| LN6 | Doddington | Lincolnshire |
| EX19 | Dolton | Devon |
| DN1 | Doncaster | South Yorkshire |
| SP7 | Donhead | Wiltshire |
| DT1 | Dorchester | Dorset |
| RH4 | Dorking | Surrey |
| RH19 | Dormans Park | Surrey |
| SY5 | Dorrington | Shropshire |
| CT16 | Dover | Kent |
| PL11 | Downderry | Cornwall |
| BS16 | Downend | Bristol and Avon |
| PE38 | Downham Market | Norfolk |
| SP5 | Downton | Wiltshire |
| PE10 | Dowsby | Lincolnshire |
| DE72 | Draycott | Derbyshire |
| OX15 | Drayton | Oxfordshire |
| EX6 | Drewsteignton | Devon |
| GL7 | Driffield | Gloucestershire |
| BD11 | Drighlington | West Yorkshire |
| WR9 | Droitwich | Hereford and Worcester |
| S18 | Dronfield | Derbyshire |
| SO32 | Droxford | Hampshire |
| M43 | Droylsden | Greater Manchester |
| PE9 | Duddington | Northamptonshire |
| SY12 | Dudleston Heath | Shropshire |
| TA22 | Dulverton | Somerset |
| SE21 | Dulwich | Greater London |
| RG25 | Dummer | Hampshire |
| GU8 | Dunsfold | Surrey |
| BB7 | Dunsop Bridge | Lancashire |
| LU6 | Dunstable | Bedfordshire |
| TA24 | Dunster | Somerset |
| TN13 | Dunton Green | Kent |
| DH1 | Durham | County Durham |
| SO32 | Durley | Hampshire |
| SP4 | Durrington | Wiltshire |
| GL11 | Dursley | Gloucestershire |
| TN29 | Dymchurch | Kent |
| GL18 | Dymock | Gloucestershire |
| TS16 | Eaglescliffe | Cleveland |
| W13 | Ealing | Greater London |
| W5 | Ealing | Greater London |
| BB8 | Earby | Lancashire |
| HR6 | Eardisland | Hereford and Worcester |
| HR3 | Eardisley | Hereford and Worcester |
| WR15 | Eardiston | Hereford and Worcester |
| LE9 | Earl Shilton | Leicestershire |
| IP13 | Earl Soham | Suffolk |
| SW5 | Earl's Court | Greater London |
| NN6 | Earls Barton | Northamptonshire |
| CO6 | Earls Colne | Essex |
| B94 | Earlswood | Warwickshire |
| SR8 | Easington | County Durham |
| TQ9 | East Allington | Devon |
| NG13 | East Bridgford | Nottinghamshire |
| BN20 | East Dean | East Sussex |
| RG20 | East End | Hampshire |
| SO41 | East End | Hampshire |
| RH19 | East Grinstead | West Sussex |
| NN6 | East Haddon | Northamptonshire |
| E6 | East Ham | Greater London |
| NR16 | East Harling | Norfolk |
| DL6 | East Harlsey | North Yorkshire |
| OX12 | East Hendred | Oxfordshire |
| KT24 | East Horsley | Surrey |
| RG20 | East Ilsley | Berkshire |
| PE23 | East Kirkby | Lincolnshire |
| SP3 | East Knoyle | Wiltshire |
| LE16 | East Langton | Leicestershire |
| DL11 | East Layton | North Yorkshire |
| LE12 | East Leake | Nottinghamshire |
| PO18 | East Marden | West Sussex |
| GU32 | East Meon | Hampshire |
| KT8 | East Molesey | Surrey |
| TN12 | East Peckham | Kent |
| PE31 | East Rudham | Norfolk |
| NG23 | East Stoke | Nottinghamshire |
| SP8 | East Stour | Dorset |
| BN21 | Eastbourne | East Sussex |
| ME12 | Eastchurch | Kent |
| PO20 | Eastergate | West Sussex |
| DL13 | Eastgate | County Durham |
| L62 | Eastham | Merseyside |
| SO50 | Eastleigh | Hampshire |
| DN17 | Eastoft | Lincolnshire |
| DN14 | Eastrington | E Riding of Yorkshire |
| LU6 | Eaton Bray | Bedfordshire |
| DH8 | Ebchester | County Durham |
| ST21 | Eccleshall | Staffordshire |
| PR7 | Eccleston | Lancashire |
| S31 | Eckington | Derbyshire |
| TN8 | Edenbridge | Kent |
| PE10 | Edenham | Lincolnshire |
| B15 | Edgbaston | West Midlands |
| HA8 | Edgware | Greater London |
| N18 | Edmonton | Greater London |
| DH8 | Edmundbyres | County Durham |
| TN27 | Egerton | Kent |
| TW20 | Egham | Surrey |
| CA22 | Egremont | Cumbria |
| CT4 | Elham | Kent |
| HX5 | Elland | West Yorkshire |
| DE6 | Ellastone | Staffordshire |
| SY12 | Ellesmere | Shropshire |
| L65 | Ellesmere Port | Cheshire |
| IP30 | Elmswell | Suffolk |
| GU8 | Elstead | Surrey |
| WD6 | Elstree | Hertfordshire |
| CB3 | Elsworth | Cambridgeshire |
| SE9 | Eltham | Greater London |
| PE8 | Elton | Cambridgeshire |
| IP24 | Elveden | Suffolk |
| YO4 | Elvington | North Yorkshire |
| CB7 | Ely | Cambridgeshire |
| CA13 | Embleton | Cumbria |
| LE15 | Empingham | Leicestershire |
| PO10 | Emsworth | Hampshire |
| EN1 | Enfield | Greater London |
| EN2 | Enfield | Greater London |
| OX7 | Enstone | Oxfordshire |
| CM16 | Epping | Essex |
| KT17 | Epsom | Surrey |
| DN9 | Epworth | Lincolnshire |
| B24 | Erdington | West Midlands |
| IP28 | Eriswell | Suffolk |
| DA8 | Erith | Kent |
| YO19 | Escrick | North Yorkshire |
| DH7 | Esh Winning | County Durham |
| TS6 | Eston | Cleveland |
| TN19 | Etchingham | East Sussex |
| DE65 | Etwall | Derbyshire |
| NW1 | Euston | Greater London |
| NW1 | Euston | Greater London |
| BA4 | Evercreech | Somerset |
| DT2 | Evershot | Dorset |
| RG27 | Eversley | Hampshire |
| WR11 | Evesham | Hereford and Worcester |
| KT17 | Ewell | Surrey |
| GU6 | Ewhurst | Surrey |
| EX20 | Exbourne | Devon |
| EX2 | Exeter | Devon |
| TA24 | Exford | Somerset |
| EX8 | Exmouth | Devon |
| CB8 | Exning | Suffolk |
| IP23 | Eye | Suffolk |
| IP12 | Eyke | Suffolk |
| M35 | Failsworth | Greater Manchester |
| SO50 | Fair Oak | Hampshire |
| TN35 | Fairlight | East Sussex |
| NR21 | Fakenham | Norfolk |
| GL12 | Falfield | Gloucestershire |
| PO16 | Fareham | Hampshire |
| SN7 | Faringdon | Oxfordshire |
| SP5 | Farley | Wiltshire |
| GU11 | Farnborough | Hampshire |
| OX17 | Farnborough | Warwickshire |
| CH3 | Farndon | Cheshire |
| GU9 | Farnham | Surrey |
| SL2 | Farnham Common | Buckinghamshire |
| DA4 | Farningham | Kent |
| BL4 | Farnworth | Greater Manchester |
| EX13 | Farway | Devon |
| BA3 | Faulkland | Somerset |
| ME13 | Faversham | Kent |
| NE3 | Fawdon | Tyne and Wear |
| SO45 | Fawley | Hampshire |
| RH12 | Faygate | West Sussex |
| WF7 | Featherstone | West Yorkshire |
| IP11 | Felixstowe | Suffolk |
| NE10 | Felling | Tyne and Wear |
| TW13 | Feltham | Greater London |
| NE65 | Felton | Northumberland |
| IP26 | Feltwell | Norfolk |
| DH4 | Fence Houses | Tyne and Wear |
| CV33 | Fenny Compton | Warwickshire |
| NG23 | Fenton | Lincolnshire |
| BH22 | Ferndown | Dorset |
| DL17 | Ferryhill | County Durham |
| ST14 | Field | Staffordshire |
| GL7 | Filkins | Oxfordshire |
| EX17 | Filleigh | Devon |
| CV7 | Fillongley | Warwickshire |
| PE33 | Fincham | Norfolk |
| N3 | Finchley | Greater London |
| BN14 | Findon | West Sussex |
| MK18 | Finmere | Oxfordshire |
| BS16 | Fishponds | Bristol and Avon |
| RH20 | Fittleworth | West Sussex |
| BS19 | Flax Bourton | Somerset |
| YO60 | Flaxton | North Yorkshire |
| GU13 | Fleet | Hampshire |
| EC4 | Fleet Street | Greater London |
| FY7 | Fleetwood | Lancashire |
| TN5 | Flimwell | East Sussex |
| MK45 | Flitwick | Bedfordshire |
| WF4 | Flockton | West Yorkshire |
| LA11 | Flookburgh | Cumbria |
| CT19 | Folkestone | Kent |
| NG34 | Folkingham | Lincolnshire |
| SP7 | Fontmell Magna | Dorset |
| TN3 | Fordcombe | Kent |
| SP6 | Fordingbridge | Hampshire |
| RH5 | Forest Green | Surrey |
| SE23 | Forest Hill | Greater London |
| RH18 | Forest Row | East Sussex |
| L37 | Formby | Merseyside |
| PR3 | Forton | Lancashire |
| PE20 | Fosdyke | Lincolnshire |
| GL54 | Fossebridge | Gloucestershire |
| NR20 | Foulsham | Norfolk |
| TN8 | Four Elms | Kent |
| TN31 | Four Oaks | East Sussex |
| SP3 | Fovant | Wiltshire |
| PL23 | Fowey | Cornwall |
| SG8 | Fowlmere | Cambridgeshire |
| HR1 | Fownhope | Hereford and Worcester |
| TN22 | Framfield | East Sussex |
| NR14 | Framingham Earl | Norfolk |
| IP13 | Framlingham | Suffolk |
| GL6 | Frampton Mansell | Gloucestershire |
| TN3 | Frant | East Sussex |
| PR4 | Freckleton | Lancashire |
| OX8 | Freeland | Oxfordshire |
| NR13 | Freethorpe | Norfolk |
| BS16 | Frenchay | Bristol and Avon |
| GU10 | Frensham | Surrey |
| PO40 | Freshwater | Isle of Wight |
| IP21 | Fressingfield | Suffolk |
| OX13 | Frilford | Oxfordshire |
| CO13 | Frinton-on-Sea | Essex |
| PE22 | Friskney | Lincolnshire |
| TN17 | Frittenden | Kent |
| NR15 | Fritton | Norfolk |
| OX6 | Fritwell | Oxfordshire |
| WA6 | Frodsham | Cheshire |
| TQ7 | Frogmore | Devon |
| BA11 | Frome | Somerset |
| SW6 | Fulham | Greater London |
| SL3 | Fulmer | Buckinghamshire |
| LN11 | Fulstow | Lincolnshire |
| NR16 | Fundenhall | Norfolk |
| CM5 | Fyfield | Essex |
| LE7 | Gaddesby | Leicestershire |
| DL2 | Gainford | County Durham |
| DN21 | Gainsborough | Lincolnshire |
| LA2 | Galgate | Lancashire |
| TQ7 | Galmpton | Devon |
| SG19 | Gamlingay | Cambridgeshire |
| NG2 | Gamston | Nottinghamshire |
| TQ9 | Gara Bridge | Devon |
| IP22 | Garboldisham | Norfolk |
| BD23 | Gargrave | North Yorkshire |
| OX44 | Garsington | Oxfordshire |
| PR3 | Garstang | Lancashire |
| WN4 | Garswood | Merseyside |
| L25 | Gateacre | Merseyside |
| YO8 | Gateforth | North Yorkshire |
| NE8 | Gateshead | Tyne and Wear |
| PE32 | Gayton | Norfolk |
| PE12 | Gedney Drove End | Lincolnshire |
| SK14 | Gee Cross | Greater Manchester |
| TR20 | Germoe | Cornwall |
| SL9 | Gerrards Cross | Buckinghamshire |
| SP8 | Gillingham | Dorset |
| CA6 | Gilsland | Northumberland |
| SE19 | Gipsy Hill | Greater London |
| BB7 | Gisburn | Lancashire |
| YO21 | Glaisdale | North Yorkshire |
| BA6 | Glastonbury | Somerset |
| CO10 | Glemsford | Suffolk |
| CA11 | Glenridding | Cumbria |
| SK13 | Glossop | Derbyshire |
| GL1 | Gloucester | Gloucestershire |
| BN8 | Glynde | East Sussex |
| YO22 | Goathland | North Yorkshire |
| GU7 | Godalming | Surrey |
| PO38 | Godshill | Isle of Wight |
| RH9 | Godstone | Surrey |
| NW11 | Golders Green | Greater London |
| CM1 | Good Easter | Essex |
| PE33 | Gooderstone | Norfolk |
| DN14 | Goole | E Riding of Yorkshire |
| PR3 | Goosnargh | Lancashire |
| RG8 | Goring | Oxfordshire |
| GL18 | Gorsley | Gloucestershire |
| PE11 | Gosberton | Lincolnshire |
| CA20 | Gosforth | Cumbria |
| NE3 | Gosforth | Tyne and Wear |
| PO12 | Gosport | Hampshire |
| TN17 | Goudhurst | Kent |
| GU28 | Graffham | West Sussex |
| LA11 | Grange-over-Sands | Cumbria |
| NG31 | Grantham | Lincolnshire |
| LA22 | Grasmere | Cumbria |
| BD23 | Grassington | North Yorkshire |
| SP11 | Grateley | Hampshire |
| DA12 | Gravesend | Kent |
| LA8 | Grayrigg | Cumbria |
| B49 | Great Alne | Warwickshire |
| TS9 | Great Ayton | North Yorkshire |
| B43 | Great Barr | West Midlands |
| IP31 | Great Barton | Suffolk |
| SN8 | Great Bedwyn | Wiltshire |
| CO7 | Great Bentley | Essex |
| TF6 | Great Bolas | Shropshire |
| MK17 | Great Brickhill | Buckinghamshire |
| TF10 | Great Chatwell | Staffordshire |
| IP25 | Great Cressingham | Norfolk |
| L23 | Great Crosby | Merseyside |
| DE6 | Great Cubley | Derbyshire |
| CM6 | Great Dunmow | Essex |
| CM6 | Great Easton | Essex |
| PR3 | Great Eccleston | Lancashire |
| LE8 | Great Glen | Leicestershire |
| SG19 | Great Gransden | Cambridgeshire |
| BB6 | Great Harwood | Lancashire |
| ST18 | Great Haywood | Staffordshire |
| CV6 | Great Heath | West Midlands |
| IP24 | Great Hockham | Norfolk |
| SG9 | Great Hormead | Hertfordshire |
| CM3 | Great Leighs | Essex |
| DE45 | Great Longstone | Derbyshire |
| DH3 | Great Lumley | County Durham |
| PE32 | Great Massingham | Norfolk |
| OX44 | Great Milton | Oxfordshire |
| HP16 | Great Missenden | Buckinghamshire |
| NN14 | Great Oakley | Northamptonshire |
| NG33 | Great Ponton | Lincolnshire |
| NR21 | Great Ryburgh | Norfolk |
| CB10 | Great Sampford | Essex |
| RG17 | Great Shefford | Berkshire |
| DL6 | Great Smeaton | North Yorkshire |
| OX7 | Great Tew | Oxfordshire |
| CO7 | Great Wenham | Suffolk |
| NE19 | Great Whittington | Northumberland |
| WR6 | Great Witley | Hereford and Worcester |
| NR30 | Great Yarmouth | Norfolk |
| CO9 | Great Yeldham | Essex |
| PE9 | Greatford | Lincolnshire |
| UB6 | Greenford | Greater London |
| TA21 | Greenham | Somerset |
| DA9 | Greenhithe | Kent |
| LA12 | Greenodd | Cumbria |
| SE10 | Greenwich | Greater London |
| HP18 | Grendon Underwood | Buckinghamshire |
| NR20 | Gressenhall | Norfolk |
| CA11 | Greystoke | Cumbria |
| DN32 | Grimsby | Lincolnshire |
| TN3 | Groombridge | East Sussex |
| YO22 | Grosmont | North Yorkshire |
| IP13 | Grundisburgh | Suffolk |
| TS14 | Guisborough | Cleveland |
| LS20 | Guiseley | West Yorkshire |
| GL54 | Guiting Power | Gloucestershire |
| DL11 | Gunnerside | North Yorkshire |
| PE13 | Guyhirn | Cambridgeshire |
| NN7 | Hackleton | Northamptonshire |
| E2 | Hackney | Greater London |
| E8 | Hackney | Greater London |
| CA10 | Hackthorpe | Cumbria |
| HP17 | Haddenham | Buckinghamshire |
| SS7 | Hadleigh | Essex |
| IP7 | Hadleigh | Suffolk |
| TN11 | Hadlow | Kent |
| TN22 | Hadlow Down | East Sussex |
| SY4 | Hadnall | Shropshire |
| DY9 | Hagley | Hereford and Worcester |
| BN27 | Hailsham | East Sussex |
| IG6 | Hainault | Greater London |
| B63 | Halesowen | West Midlands |
| IP19 | Halesworth | Suffolk |
| L26 | Halewood | Merseyside |
| SY5 | Halfway House | Shropshire |
| HX1 | Halifax | West Yorkshire |
| B28 | Hall Green | West Midlands |
| BN8 | Halland | East Sussex |
| LE16 | Hallaton | Leicestershire |
| CA8 | Hallbankgate | Cumbria |
| PO18 | Halnaker | West Sussex |
| CO9 | Halstead | Essex |
| NE49 | Haltwhistle | Northumberland |
| BA6 | Ham Street | Somerset |
| SO31 | Hamble | Hampshire |
| RG9 | Hambleden | Buckinghamshire |
| PO7 | Hambledon | Hampshire |
| FY6 | Hambleton | Lancashire |
| W14 | Hammersmith | Greater London |
| W6 | Hammersmith | Greater London |
| NW3 | Hampstead | Greater London |
| SY14 | Hampton Heath | Cheshire |
| B92 | Hampton in Arden | West Midlands |
| WS15 | Hamstall Ridware | Staffordshire |
| B60 | Hanbury | Hereford and Worcester |
| RH17 | Handcross | West Sussex |
| S13 | Handsworth | South Yorkshire |
| B21 | Handsworth | West Midlands |
| WR8 | Hanley Swan | Hereford and Worcester |
| NR11 | Hanworth | Norfolk |
| TQ9 | Harbertonford | Devon |
| B17 | Harborne | West Midlands |
| CV33 | Harbury | Warwickshire |
| LE14 | Harby | Leicestershire |
| NG23 | Harby | Nottinghamshire |
| UB9 | Harefield | Greater London |
| LS17 | Harewood | West Yorkshire |
| HR2 | Harewood End | Hereford and Worcester |
| B79 | Harlaston | Staffordshire |
| NW10 | Harlesden | Greater London |
| IP20 | Harleston | Norfolk |
| CM17 | Harlow | Essex |
| AL5 | Harpenden | Hertfordshire |
| HG1 | Harrogate | North Yorkshire |
| HA2 | Harrow | Greater London |
| NE61 | Hartburn | Northumberland |
| IP29 | Hartest | Suffolk |
| TN7 | Hartfield | East Sussex |
| SK17 | Hartington | Derbyshire |
| EX39 | Hartland | Devon |
| DY11 | Hartlebury | Hereford and Worcester |
| TS24 | Hartlepool | Hartlepool |
| RG27 | Hartley Wintney | Hampshire |
| GL19 | Hartpury | Gloucestershire |
| OX11 | Harwell | Oxfordshire |
| CO12 | Harwich | Essex |
| GU8 | Hascombe | Surrey |
| GU27 | Haslemere | Surrey |
| BN6 | Hassocks | West Sussex |
| TN34 | Hastings | East Sussex |
| DH6 | Haswell | County Durham |
| TA3 | Hatch Beauchamp | Somerset |
| HA5 | Hatch End | Greater London |
| AL10 | Hatfield | Hertfordshire |
| CM22 | Hatfield Heath | Essex |
| SP11 | Hatherden | Hampshire |
| EX20 | Hatherleigh | Devon |
| S30 | Hathersage | Derbyshire |
| IP14 | Haughley | Suffolk |
| PO9 | Havant | Hampshire |
| CB9 | Haverhill | Suffolk |
| RM12 | Havering | Essex |
| DL8 | Hawes | North Yorkshire |
| EX13 | Hawkchurch | Devon |
| IP29 | Hawkedon | Suffolk |
| TN18 | Hawkhurst | Kent |
| CT18 | Hawkinge | Kent |
| GU33 | Hawkley | Hampshire |
| LA22 | Hawkshead | Cumbria |
| BD22 | Haworth | West Yorkshire |
| SN13 | Hawthorn | Wiltshire |
| DN9 | Haxey | Lincolnshire |
| NE47 | Haydon Bridge | Northumberland |
| UB3 | Hayes | Greater London |
| BR2 | Hayes | Greater London |
| UB8 | Hayes | Greater London |
| TR27 | Hayle | Cornwall |
| PO11 | Hayling Island | Hampshire |
| MK45 | Haynes | Bedfordshire |
| CA5 | Hayton | Cumbria |
| CA4 | Hayton | Cumbria |
| TQ13 | Haytor Vale | Devon |
| SK7 | Hazel Grove | Greater Manchester |
| DT10 | Hazelbury Bryan | Dorset |
| PE31 | Heacham | Norfolk |
| TN27 | Headcorn | Kent |
| GU35 | Headley | Hampshire |
| RG19 | Headley | Hampshire |
| SK8 | Heald Green | Greater Manchester |
| LU7 | Heath and Reach | Bedfordshire |
| WS12 | Heath Hayes | Staffordshire |
| TN21 | Heathfield | East Sussex |
| SK4 | Heaton Moor | Greater Manchester |
| NE31 | Hebburn | Tyne and Wear |
| HX7 | Hebden Bridge | West Yorkshire |
| RG27 | Heckfield | Hampshire |
| WF16 | Heckmondwike | West Yorkshire |
| WS12 | Hednesford | Staffordshire |
| EX34 | Hele | Devon |
| BD23 | Hellifield | North Yorkshire |
| IP14 | Helmingham | Suffolk |
| YO41 | Helmsley | North Yorkshire |
| YO6 | Helperby | North Yorkshire |
| WA6 | Helsby | Cheshire |
| TR13 | Helston | Cornwall |
| HP3 | Hemel Hempstead | Hertfordshire |
| YO8 | Hemingbrough | North Yorkshire |
| NR15 | Hempnall | Norfolk |
| DN21 | Hemswell | Lincolnshire |
| WF9 | Hemsworth | West Yorkshire |
| EX15 | Hemyock | Devon |
| NW4 | Hendon | Greater London |
| BN5 | Henfield | West Sussex |
| TA3 | Henlade | Somerset |
| B95 | Henley-in-Arden | Warwickshire |
| RG9 | Henley-on-Thames | Oxfordshire |
| SG16 | Henlow | Bedfordshire |
| HR1 | Hereford | Hereford and Worcester |
| RG18 | Hermitage | Berkshire |
| CT6 | Herne Bay | Kent |
| RG25 | Herriard | Hampshire |
| SR3 | Herrington | Tyne and Wear |
| BN27 | Herstmonceux | East Sussex |
| SG13 | Hertford | Hertfordshire |
| PR4 | Hesketh Bank | Lancashire |
| LA2 | Hest Bank | Lancashire |
| CH60 | Heswall | Merseyside |
| DH5 | Hetton-le-Hole | Tyne and Wear |
| NR10 | Hevingham | Norfolk |
| NE46 | Hexham | Northumberland |
| LA3 | Heysham | Lancashire |
| OL10 | Heywood | Greater Manchester |
| NR12 | Hickling | Norfolk |
| EX37 | High Bickington | Devon |
| TF6 | High Ercall | Shropshire |
| TN26 | High Halden | Kent |
| E4 | Highams Park | Greater London |
| N5 | Highbury | Greater London |
| RG20 | Highclere | Hampshire |
| BH23 | Highcliffe | Dorset |
| WV16 | Highley | Shropshire |
| TN11 | Hildenborough | Kent |
| ST15 | Hilderstone | Staffordshire |
| PE31 | Hillington | Norfolk |
| SN11 | Hilmarton | Wiltshire |
| LE10 | Hinckley | Leicestershire |
| GU26 | Hindhead | Surrey |
| IP8 | Hintlesham | Suffolk |
| CB4 | Histon | Cambridgeshire |
| SG4 | Hitchin | Hertfordshire |
| SG5 | Hitchin | Hertfordshire |
| DE13 | Hoar Cross | Staffordshire |
| SS5 | Hockley | Essex |
| EN11 | Hoddesdon | Hertfordshire |
| TF9 | Hodnet | Shropshire |
| PR5 | Hoghton | Lancashire |
| PE12 | Holbeach | Lincolnshire |
| PE12 | Holbeach St Johns | Lincolnshire |
| PE12 | Holbeach St Marks | Lincolnshire |
| PL8 | Holbeton | Devon |
| WC1 | Holborn | Greater London |
| WC2 | Holborn | Greater London |
| EC1 | Holborn | Greater London |
| IP9 | Holbrook | Suffolk |
| TA5 | Holford | Somerset |
| ME17 | Hollingbourne | Kent |
| ST10 | Hollington | Staffordshire |
| N7 | Holloway | Greater London |
| IP25 | Holme Hale | Norfolk |
| HR2 | Holme Lacy | Hereford and Worcester |
| HD7 | Holmfirth | West Yorkshire |
| CA19 | Holmrook | Cumbria |
| DT9 | Holnest | Dorset |
| EX22 | Holsworthy | Devon |
| NR25 | Holt | Norfolk |
| IP20 | Homersfield | Suffolk |
| CT2 | Honey Hill | Kent |
| NG32 | Honington | Lincolnshire |
| IP31 | Honington | Suffolk |
| EX14 | Honiton | Devon |
| RG27 | Hook | Hampshire |
| OX15 | Hook Norton | Oxfordshire |
| TN21 | Horam | East Sussex |
| RH6 | Horley | Surrey |
| LA2 | Hornby | Lancashire |
| RM12 | Hornchurch | Essex |
| PO8 | Horndean | Hampshire |
| NR12 | Horning | Norfolk |
| EX39 | Horns Cross | Devon |
| HU18 | Hornsea | E Riding of Yorkshire |
| N8 | Hornsey | Greater London |
| IP29 | Horringer | Suffolk |
| LS18 | Horsforth | West Yorkshire |
| LN3 | Horsington | Lincolnshire |
| BD24 | Horton in Ribblesdale | North Yorkshire |
| BL6 | Horwich | Greater Manchester |
| DH4 | Houghton le Spring | Tyne and Wear |
| TW4 | Hounslow | Greater London |
| TW3 | Hounslow | Greater London |
| YO62 | Hovingham | North Yorkshire |
| HR1 | How Caple | Hereford and Worcester |
| DN14 | Howden | E Riding of Yorkshire |
| IP21 | Hoxne | Suffolk |
| CH47 | Hoylake | Merseyside |
| PE20 | Hubbert's Bridge | Lincolnshire |
| HD1 | Huddersfield | West Yorkshire |
| DE6 | Hulland | Derbyshire |
| SN14 | Hullavington | Wiltshire |
| NE46 | Humshaugh | Northumberland |
| CO10 | Hundon | Suffolk |
| LE7 | Hungarton | Leicestershire |
| RG17 | Hungerford | Berkshire |
| PE36 | Hunstanton | Norfolk |
| PE18 | Huntingdon | Cambridgeshire |
| ME15 | Hunton | Kent |
| SO21 | Hursley | Hampshire |
| TN19 | Hurst Green | East Sussex |
| SP11 | Hurstbourne Tarrant | Hampshire |
| BN6 | Hurstpierpoint | West Sussex |
| TS15 | Hutton Rudby | North Yorkshire |
| YO7 | Hutton Sessay | North Yorkshire |
| CH3 | Huxley | Cheshire |
| L36 | Huyton | Merseyside |
| SO45 | Hythe | Hampshire |
| CT21 | Hythe | Kent |
| LE67 | Ibstock | Leicestershire |
| HP18 | Ickford | Buckinghamshire |
| TN14 | Ide Hill | Kent |
| TN31 | Iden | East Sussex |
| SP4 | Idmiston | Wiltshire |
| BA22 | Ilchester | Somerset |
| IG1 | Ilford | Greater London |
| EX34 | Ilfracombe | Devon |
| DE7 | Ilkeston | Derbyshire |
| NR34 | Ilketshall | Suffolk |
| LS29 | Ilkley | West Yorkshire |
| CV36 | Ilmington | Warwickshire |
| TA19 | Ilminster | Somerset |
| DN40 | Immingham | Lincolnshire |
| CM4 | Ingatestone | Essex |
| LA6 | Ingleton | North Yorkshire |
| NG33 | Ingoldsby | Lincolnshire |
| WR7 | Inkberrow | Hereford and Worcester |
| RG17 | Inkpen | Berkshire |
| EX39 | Instow | Devon |
| TQ12 | Ipplepen | Devon |
| ST10 | Ipstones | Staffordshire |
| IP1 | Ipswich | Suffolk |
| CH61 | Irby | Merseyside |
| TN22 | Isfield | East Sussex |
| TA3 | Isle Brewers | Somerset |
| CB7 | Isleham | Cambridgeshire |
| TW7 | Isleworth | Greater London |
| SO21 | Itchen Abbas | Hampshire |
| SL0 | Iver | Buckinghamshire |
| HR6 | Ivington | Hereford and Worcester |
| PL21 | Ivybridge | Devon |
| CO15 | Jaywick | Essex |
| NE2 | Jesmond | Tyne and Wear |
| BA14 | Keevil | Wiltshire |
| DE74 | Kegworth | Leicestershire |
| BD21 | Keighley | West Yorkshire |
| CW6 | Kelsall | Cheshire |
| SG8 | Kelshall | Hertfordshire |
| CO5 | Kelvedon | Essex |
| GL7 | Kemble | Gloucestershire |
| GL7 | Kempsford | Gloucestershire |
| LA9 | Kendal | Cumbria |
| CV8 | Kenilworth | Warwickshire |
| SE17 | Kennington | Greater London |
| SE11 | Kennington | Greater London |
| NW10 | Kensal Green | Greater London |
| W8 | Kensington | Greater London |
| EX15 | Kentisbeare | Devon |
| NW5 | Kentish Town | Greater London |
| CV6 | Keresley | West Midlands |
| CA12 | Keswick | Cumbria |
| NN16 | Kettering | Northamptonshire |
| BD23 | Kettlewell | North Yorkshire |
| HU12 | Keyingham | E Riding of Yorkshire |
| BS18 | Keynsham | Bristol and Avon |
| LE8 | Kibworth | Leicestershire |
| DY10 | Kidderminster | Hereford and Worcester |
| OX20 | Kiddington | Oxfordshire |
| OX5 | Kidlington | Oxfordshire |
| RG4 | Kidmore End | Oxfordshire |
| ST7 | Kidsgrove | Staffordshire |
| NW6 | Kilburn | Greater London |
| YO25 | Kilham | E Riding of Yorkshire |
| EX23 | Kilkhampton | Cornwall |
| PE18 | Kimbolton | Cambridgeshire |
| SG4 | Kimpton | Hertfordshire |
| CV35 | Kineton | Warwickshire |
| PE8 | King's Cliffe | Northamptonshire |
| WC1 | King's Cross | Greater London |
| B14 | King's Heath | West Midlands |
| PE30 | King's Lynn | Norfolk |
| B38 | King's Norton | West Midlands |
| SO20 | King's Somborne | Hampshire |
| OX7 | Kingham | Oxfordshire |
| WD4 | Kings Langley | Hertfordshire |
| TQ7 | Kingsbridge | Devon |
| NW9 | Kingsbury | Greater London |
| HA3 | Kingsbury | Greater London |
| RG20 | Kingsclere | Hampshire |
| TQ12 | Kingskerswell | Devon |
| HR6 | Kingsland | Hereford and Worcester |
| B44 | Kingstanding | West Midlands |
| NN2 | Kingsthorpe | Northamptonshire |
| OX9 | Kingston Blount | Oxfordshire |
| TA2 | Kingston St Mary | Somerset |
| TQ6 | Kingswear | Devon |
| DY6 | Kingswinford | West Midlands |
| WR7 | Kington | Hereford and Worcester |
| HR5 | Kington | Hereford and Worcester |
| SN15 | Kington Langley | Wiltshire |
| DY12 | Kinlet | Shropshire |
| NG12 | Kinoulton | Nottinghamshire |
| RG17 | Kintbury | Berkshire |
| DY7 | Kinver | Staffordshire |
| NR35 | Kirby Cane | Norfolk |
| YO17 | Kirby Misperton | North Yorkshire |
| YO7 | Kirby Wiske | North Yorkshire |
| RH14 | Kirdford | West Sussex |
| DE6 | Kirk Langley | Derbyshire |
| CA5 | Kirkbride | Cumbria |
| HD8 | Kirkburton | West Yorkshire |
| DL7 | Kirkby Fleetham | North Yorkshire |
| LA6 | Kirkby Lonsdale | Cumbria |
| HG4 | Kirkby Malzeard | North Yorkshire |
| CA17 | Kirkby Stephen | Cumbria |
| CA10 | Kirkby Thore | Cumbria |
| YO62 | Kirkbymoorside | North Yorkshire |
| PR4 | Kirkham | Lancashire |
| NE19 | Kirkwhelpington | Northumberland |
| IP10 | Kirton | Suffolk |
| DN21 | Kirton in Lindsey | Lincolnshire |
| WR6 | Knightwick | Hereford and Worcester |
| NG32 | Knipton | Leicestershire |
| TN14 | Knockholt | Kent |
| SY10 | Knockin | Shropshire |
| FY6 | Knott End | Lancashire |
| WF11 | Knottingley | West Yorkshire |
| B93 | Knowle | West Midlands |
| WA16 | Knutsford | Cheshire |
| WR15 | Kyre Park | Hereford and Worcester |
| SN15 | Lacock | Wiltshire |
| TN3 | Lamberhurst | Kent |
| CA14 | Lamplugh | Cumbria |
| LA1 | Lancaster | Lancashire |
| DH7 | Lanchester | County Durham |
| PL12 | Landrake | Cornwall |
| DE75 | Langley | Derbyshire |
| PE22 | Langrick | Lincolnshire |
| TN3 | Langton | Kent |
| EX38 | Langtree | Devon |
| CA10 | Langwathby | Cumbria |
| PL30 | Lanivet | Cornwall |
| PL13 | Lanreath | Cornwall |
| EX17 | Lapford | Devon |
| B94 | Lapworth | Warwickshire |
| NG34 | Laughton | Lincolnshire |
| PL15 | Launceston | Cornwall |
| CO10 | Lavenham | Suffolk |
| CO2 | Layer de la Haye | Essex |
| CA10 | Lazonby | Cumbria |
| HR9 | Lea | Hereford and Worcester |
| KT22 | Leatherhead | Surrey |
| GL7 | Lechlade | Gloucestershire |
| HU17 | Leconfield | E Riding of Yorkshire |
| HR8 | Ledbury | Hereford and Worcester |
| SY4 | Lee Brockhurst | Shropshire |
| SE12 | Lee Green | Greater London |
| PO13 | Lee-on-the-Solent | Hampshire |
| SY6 | Leebotwood | Shropshire |
| LS1 | Leeds | West Yorkshire |
| LS2 | Leeds | West Yorkshire |
| TR27 | Leedstown | Cornwall |
| ST13 | Leek | Staffordshire |
| LE1 | Leicester | Leicestershire |
| WR13 | Leigh Sinton | Hereford and Worcester |
| SS9 | Leigh-on-Sea | Essex |
| GL8 | Leighterton | Gloucestershire |
| LU7 | Leighton Buzzard | Bedfordshire |
| SY7 | Leintwardine | Hereford and Worcester |
| LE17 | Leire | Leicestershire |
| IP16 | Leiston | Suffolk |
| NE15 | Lemington | Tyne and Wear |
| HR6 | Leominster | Hereford and Worcester |
| SG6 | Letchworth | Hertfordshire |
| EX20 | Lewdown |