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 ME postcode area, also known as the Rochester postcode area, is a group of 20 postcode districts in South East England, within 11 post towns. These cover north central Kent, including the Medway unitary authority and the borough of Swale, plus parts of the boroughs of Maidstone, Tonbridge and Malling, and Gravesham. The letters in the postcode are derived from the name of the Medway conurbation.
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 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 SR postcode area, also known as the Sunderland postcode area, is a group of eight postcode districts in north-east England, within three post towns. These cover eastern Tyne and Wear and north-east County Durham.
The CA postcode area, also known as the Carlisle postcode area, is a group of 28 postcode districts in north-west England, within 22 post towns. These cover northern Cumbria, including Carlisle, Penrith, Workington, Whitehaven, Maryport, Cockermouth, Egremont, Alston, Appleby-in-Westmorland, Beckermet, Brampton, Cleator, Cleator Moor, Frizington, Holmrook, Keswick, Kirkby Stephen, Moor Row, Ravenglass, Seascale, St Bees and Wigton, plus a small part of Northumberland.
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 PO postcode area, also known as the Portsmouth postcode area, is a group of 34 postcode districts in southern England, within 24 post towns. These cover south-east Hampshire, southwestern West Sussex and the Isle of Wight.
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 KW postcode area, also known as the Kirkwall postcode area, is a group of sixteen postcode districts in the far north of Scotland, within fifteen post towns. These cover Caithness, east Sutherland and the Orkney Islands.
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 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 HX postcode area, also known as the Halifax postcode area, is a group of seven postcode districts in England, within four post towns. These cover most of the Metropolitan Borough of Calderdale in western West Yorkshire, including Halifax, Elland, Sowerby Bridge and Hebden Bridge.
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.
