The SM postcode area, also known as the Sutton & Morden postcode area, is a group of seven postcode districts in England, within five post towns. These cover part of south-west London, as well as a small part of north Surrey.
The DA postcode area, also known as the Dartford postcode area, is a group of eighteen postcode districts in England, within eleven post towns. These cover parts of south-east London and north-west Kent.
The KA postcode area, also known as the Kilmarnock postcode area, is a group of 30 postcode districts in south-west Scotland, within 23 post towns. These cover East Ayrshire, North Ayrshire and South Ayrshire.
The EH postcode area, also known as the Edinburgh postcode area, is a group of 55 postcode districts for post towns: Armadale, Balerno, Bathgate, Bo'ness, Bonnyrigg, Broxburn, Currie, Dalkeith, Dunbar, East Linton, Edinburgh, Gorebridge, Gullane, Haddington, Heriot, Humbie, Innerleithen, Juniper Green, Kirkliston, Kirknewton, Lasswade, Linlithgow, Livingston, Loanhead, Longniddry, Musselburgh, Newbridge, North Berwick, Ormiston, Pathhead, Peebles, Penicuik, Prestonpans, Rosewell, Roslin, South Queensferry, Tranent, Walkerburn, West Calder and West Linton in Scotland.
The DN postcode area, also known as the Doncaster postcode area, is a group of 32 postcode districts in northern England, within 13 post towns. These cover eastern South Yorkshire, north Lincolnshire, parts of north Nottinghamshire and the south-west of the East Riding of Yorkshire, and a small part of southern North Yorkshire.
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 ML postcode area, also known as the Motherwell postcode area, is a group of twelve postcode districts in south-central Scotland, within twelve post towns. These cover most of North Lanarkshire and South Lanarkshire, plus very small parts of West Lothian, the Scottish Borders and Dumfries and Galloway.
The S postcode area, also known as the Sheffield postcode area, is a group of postcode districts in England, which are subdivisions of eight post towns. These cover most of South Yorkshire, parts of north Derbyshire and north-west Nottinghamshire, plus a small part of West Yorkshire. The S postcode area is one of six with a population above 1 million.
The RG postcode area, also known as the Reading postcode area, is a group of thirty postcode districts in England, within twelve post towns. These cover west and central Berkshire and north Hampshire, plus a small part of south-east Oxfordshire and very small parts of Buckinghamshire and Wiltshire.
The SK postcode area, also known as the Stockport postcode area, is a group of nineteen postcode districts in England, within eleven post towns. These cover south-east Greater Manchester, parts of east Cheshire, north-west Derbyshire and a small part of north Staffordshire.
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 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 PL postcode area, also known as the Plymouth postcode area, is a group of 35 postcode districts in South West England, within 25 post towns. These cover west Devon and east Cornwall.
The SP postcode area, also known as the Salisbury postcode area, is a group of eleven postcode districts in southern England, within six post towns. These cover south Wiltshire and parts of north Dorset and west Hampshire.
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 PA postcode area, also known as the Paisley postcode area, is a group of 67 postcode districts in western Scotland, within 35 post towns. These cover Renfrewshire, Inverclyde and most of Argyll and Bute, plus small parts of North Ayrshire and Highland.
The PR postcode area, also known as the Preston postcode area, is a group of eleven postcode districts in North West England which together cover northern Merseyside and parts of central and southern Lancashire. Its four post towns are Chorley, Leyland, Southport, and Preston.
The L postcode area, also known as the Liverpool postcode area, is a group of postcode districts in North West England. Together they cover central and southern Merseyside, southern West Lancashire, and a small part of north-west Cheshire. Its four post towns are Bootle, Liverpool, Ormskirk, and Prescot.
