The AL postcode area, also known as the St Albans postcode area, is a group of 10 postcode districts in England, within 5 post towns and around 7,762 live postcodes. These cover central Hertfordshire, including St Albans, Harpenden, Welwyn, Welwyn Garden City and Hatfield.
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 HP postcode area, also known as the Hemel Hempstead postcode area, is a group of twenty-four postcode districts in England, within eleven post towns. These cover north-west Hertfordshire and much of central 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 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 PE postcode area, also known as the Peterborough postcode area, is a group of 38 postcode districts in eastern England, which are subdivisions of 18 post towns. These cover most of Cambridgeshire, much of south Lincolnshire and west Norfolk, plus parts of east Northamptonshire and very small parts of Bedfordshire and Rutland.
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 Greater Manchester.
The WN postcode area, also known as the Wigan postcode area, is a group of eight postcode districts in North West England, within three post towns. These cover most of the Metropolitan Borough of Wigan in Greater Manchester, plus small parts of West Lancashire and the Metropolitan Borough of St Helens in Merseyside.
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, plus southern 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 a small part of western North Yorkshire.
The HU postcode area, also known as the Hull postcode area, is a group of twenty postcode districts in England, which are subdivisions of 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 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 and central 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 very 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 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 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 TA postcode area, also known as the Taunton postcode area, is a group of 24 postcode districts in South West England, within 19 post towns. These cover western Somerset, plus very small parts of Dorset and Devon.
The BS postcode area, also known as the Bristol postcode area, is a group of 37 postcode districts in South West England, within 8 post towns which include around 26.740 live postcodes. These cover the city of Bristol, north Somerset and south Gloucestershire.
The KY postcode area, also known as the Kirkcaldy postcode area, is a group of sixteen postcode districts in eastern Scotland, within thirteen post towns. These cover most of Fife, plus the far south of Perth and Kinross.
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 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.
