The GU postcode area, also known as the Guildford postcode area, is a group of 38 postcode districts in South East England, within 24 post towns. These cover west Surrey, east Hampshire, northwestern West Sussex, and a small part of south-east Berkshire.
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 DE postcode area, also known as the Derby postcode area, is a group of 23 postcode districts in central England, which are subdivisions of 11 post towns. These postcode districts cover south and central Derbyshire, parts of east Staffordshire and north-west Leicestershire, and very small parts of Nottinghamshire.
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 NG postcode area, also known as the Nottingham postcode area, is a group of 29 postcode districts in the East Midlands of England, which are subdivisions of seven post towns. These cover central Nottinghamshire, parts of south-west Lincolnshire and small parts of Derbyshire and Leicestershire.
The YO postcode area, also known as the York postcode area, is a group of 30 postcode districts in Yorkshire, England, within ten post towns. These cover most of North Yorkshire and the northern part of the East Riding of Yorkshire.
The LE postcode area, also known as the Leicester postcode area, is a group of 21 postcode districts in central England, within 12 post towns. These cover most of Leicestershire and Rutland, plus small parts of south Nottinghamshire and north Northamptonshire, and very small parts of Derbyshire and Warwickshire.
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, Oxfordshire and Warwickshire.
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 a small part of western North Yorkshire.
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 DH postcode area, also known as the Durham postcode area, is a group of twelve postcode districts in north-east England, which are subdivisions of five post towns. These districts cover northern County Durham and south-west Tyne and Wear, plus a very small part of Northumberland.
The HD postcode area, also known as the Huddersfield postcode area, is a group of nine postcode districts in England, within three post towns. These cover southern West Yorkshire, including Huddersfield and Holmfirth in the Metropolitan Borough of Kirklees, and Brighouse in the Metropolitan Borough of Calderdale.
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 TR postcode area, also known as the Truro postcode area, is a group of 27 postcode districts in South West England, within 15 post towns. These cover west Cornwall, including Truro, Penzance, Camborne, Falmouth, Hayle, Helston, Marazion, Newquay, Penryn, Perranporth, Redruth, St Agnes, St Columb and St Ives, plus the Isles of Scilly.
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 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 southeast Hampshire, southwestern West Sussex and the Isle of Wight.
The WS postcode area, also known as the Walsall postcode area, is a group of fifteen postcode districts in England, within six post towns. These cover the northern part of the West Midlands, plus much of south-east Staffordshire.
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 CT postcode area, also known as the Canterbury postcode area, is a group of 21 postcode districts in South East England, within 13 post towns. These cover much of east Kent, including Canterbury, Dover, Folkestone, Birchington, Broadstairs, Deal, Herne Bay, Hythe, Margate, Ramsgate, Sandwich, Westgate-on-Sea and Whitstable.
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.
