The CM postcode area, also known as the Chelmsford postcode area, is a group of 25 postcode districts in England, within 16 post towns. These cover central Essex, plus a small part of east Hertfordshire and a very small part of the London Borough of Havering.
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 CO postcode area, also known as the Colchester postcode area, is a group of sixteen postcode districts in the east of England, within nine post towns. These cover northeast Essex and a small part of south Suffolk. The main sorting office is in Colchester.
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 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 WA postcode area, also known as the Warrington postcode area, is a group of sixteen postcode districts in North West England, within nine post towns. These cover north Cheshire, eastern Merseyside and small parts of south-western Greater Manchester.
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 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 DL postcode area, also known as the Darlington postcode area, is a group of seventeen postcode districts in England, which are subdivisions of fourteen post towns. These districts cover central County Durham, northern North Yorkshire and a very small part of Cumbria.
The TS postcode area, also known as the Cleveland postcode area, is a group of 29 postcode districts in northern England for ten post towns. These cover north-east North Yorkshire and south-east County Durham.
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 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 DT postcode area, also known as the Dorchester postcode area, is a group of eleven postcode districts in South West England, within nine post towns. These cover much of Dorset, plus very small parts of Devon and Somerset.
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 BB postcode area, also known as the Blackburn postcode area, is a group of thirteen postcode districts in north-west England, within nine post towns. These cover east Lancashire, including Blackburn, Burnley, Accrington, Barnoldswick, Clitheroe, Colne, Darwen, Nelson and Rossendale.
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 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 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.
