The LN postcode area, also known as the Lincoln postcode area, is a group of thirteen postcode districts in eastern England, within seven post towns. These cover central Lincolnshire, including Lincoln, Alford, Horncastle, Louth, Mablethorpe, Market Rasen and Woodhall Spa.
The LU postcode area, also known as the Luton postcode area, is a group of seven postcode districts in England, within three post towns. These cover south Bedfordshire, plus small parts of north Hertfordshire and east Buckinghamshire.
The MK postcode area, also known as the Milton Keynes postcode area, is a group of 26 postcode districts in England, within five post towns. These cover north Buckinghamshire, west and north Bedfordshire and very small parts of Northamptonshire, Oxfordshire and Cambridgeshire.
The CW postcode area, also known as the Crewe postcode area, is a group of twelve postcode districts in England, within eight post towns. These cover much of Cheshire, including Crewe, Northwich, Congleton, Middlewich, Nantwich, Sandbach, Tarporley and Winsford, plus very small parts of Staffordshire and Shropshire.
The NN postcode area, also known as the Northampton postcode area, is a group of nineteen postcode districts in England, within eight post towns. These cover most of Northamptonshire, plus very small parts of Bedfordshire, Buckinghamshire, Leicestershire, Oxfordshire and Warwickshire.
The IP postcode area, also known as the Ipswich postcode area, is a group of 33 postcode districts in the east of England, within 15 post towns. These cover most of Suffolk, southern and southwestern Norfolk, and a very small part of Cambridgeshire.
The LS postcode area, also known as the Leeds postcode area, is a group of 29 postcode districts in England, within six post towns. These cover northern West Yorkshire and some parts of North Yorkshire.
The HU postcode area, also known as the Hull postcode area, is a group of twenty postcode districts in England, within eight post towns. These cover the south of the East Riding of Yorkshire, including Hull, Beverley, Cottingham, Hessle, Hornsea, Withernsea, Brough and North Ferriby.
The BD postcode area, also known as the Bradford postcode area, is a group of 24 postcode districts in England, within seven post towns. These cover northwestern West Yorkshire and southwestern North Yorkshire, plus very small parts of Lancashire.
The SA postcode area, also known as the Swansea postcode area, is a group of 51 postcode districts for post towns Aberaeron, Ammanford, Boncath, Burry Port, Cardigan, Carmarthen, Clynderwen, Crymych, Ferryside, Fishguard, Glogue, Goodwick, Haverfordwest, Kidwelly, Kilgetty, Lampeter, Llanarth, Llandeilo, Llandovery, Llandysul, Llanelli, Llanfyrnach, Llangadog, Llangrannog, Llansaint, Llanwrda, Llanybydder, Milford Haven, Narberth, Neath, New Quay, Newcastle Emlyn, Newport, Pembroke, Pembroke Dock, Pencader, Pontardawe, Port Talbot, Saundersfoot, Swansea, Tenby and Whitland forming south-west Wales.
The CF postcode area, also known as the Cardiff postcode area, is a group of 35 postcode districts for post towns: Cardiff, Bridgend, Merthyr Tydfil, Caerphilly, Aberdare, Bargoed, Barry, Cowbridge, Dinas Powys, Ferndale, Hengoed, Llantwit Major, Maesteg, Mountain Ash, Penarth, Pentre, Pontyclun, Pontypridd, Porth, Porthcawl, Rhoose, Sully, Tonypandy, Treharris and Treorchy in south Wales. The CF postcode area is one of six with a population above 1 million.
The LD postcode area, also known as the Llandrindod Wells postcode area, is a group of eight postcode districts in Wales. These postcode districts cover much of south Powys, including Llandrindod Wells, Brecon, Builth Wells, Presteigne, Knighton, Rhayader, Llanwrtyd Wells and Llangammarch Wells. The LD6 district also covers one isolated farmhouse in Ceredigion. The LD7 and LD8 districts extend across the border into England, covering very small parts of Shropshire and Herefordshire.
The ST postcode area, also known as the Stoke-on-Trent postcode area, is a group of 21 postcode districts in England, within six post towns. These cover much of north and central Staffordshire, plus very small parts of Cheshire and Derbyshire.
The AB postcode area, also known as the Aberdeen postcode area is a group of 33 postcode districts in north-east Scotland, within 24 post towns. These cover the Aberdeen council area, Aberdeenshire and east Moray.
The DD postcode area, also known as the Dundee postcode area, is a group of eleven postcode districts in eastern Scotland, within nine post towns. These cover Dundee and Angus, plus part of north-east Fife and small parts of Perth and Kinross and Aberdeenshire.
The TF postcode area, also known as the Telford postcode area, is a group of thirteen postcode districts in England, within six post towns. These cover north-east Shropshire, including Telford, Broseley, Market Drayton, Much Wenlock, Newport and Shifnal, plus a small part of west Staffordshire.
The SY postcode area, also known as the Shrewsbury postcode area, is a group of 25 postcode districts in the West Midlands and Mid Wales, with small areas in North West England and North Wales. Together the districts cover most of Shropshire, north Powys, north Ceredigion, and part of south Cheshire. In addition, the SY7 and SY8 districts cover a small part of north Herefordshire, and the SY14 and SY20 districts also contain very small parts of Gwynedd and Wrexham County Borough respectively. The postcode area contains 32 post towns.
The CH postcode area, also known as the Chester postcode area, is a group of 37 postcode districts in North West England and North East Wales. Together the districts cover west Cheshire, the Wirral part of Merseyside, and east Flintshire. Its thirteen post towns are Bagillt, Birkenhead, Buckley, Chester, Deeside, Ellesmere Port, Flint, Holywell, Mold, Neston, Prenton, Wallasey, and Wirral.
The HR postcode area, also known as the Hereford postcode area, is a group of nine postcode districts in England and Wales, within six post towns. These cover most of Herefordshire, including Hereford, Bromyard, Kington, Ledbury, Leominster and Ross-on-Wye. The area also covers very small parts of Gloucestershire and Worcestershire, while the HR2, HR3 and HR5 districts extend across the border to cover a small part of Powys.
The HS postcode area, also known as the Outer Hebrides postcode area, is a group of nine postcode districts, within eight post towns, covering the Outer Hebrides in Scotland.
