List of former postal counties edit
- Aberdeenshire
- Angus
- Argyll
- Avon
- Ayrshire
- Banffshire
- Bedfordshire
- Berkshire
- Berwickshire
- Buckinghamshire
- Caithness
- Cambridgeshire
- Channel Isles
- Cheshire
- Clackmannanshire
- Cleveland
- Clwyd
- Cornwall
- County Antrim
- County Armagh
- County Down
- County Durham
- County Fermanagh
- County Londonderry
- County Tyrone
- Cumbria
- Derbyshire
- Devon
- Dorset
- Dumfriesshire
- Dunbartonshire
- Dyfed
- East Lothian
- East Sussex
- Essex
- Fife
- Gloucestershire
- Gwent
- Gwynedd
- Hampshire
- Herefordshire
- Hertfordshire
- Inverness-shire
- Isle of Arran
- Isle of Barra
- Isle of Benbecula
- Isle of Bute
- Isle of Canna
- Isle of Coll
- Isle of Colonsay
- Isle of Cumbrae
- Isle of Eigg
- Isle of Gigha
- Isle of Harris
- Isle of Iona
- Isle of Islay
- Isle of Jura
- Isle of Lewis
- Isle of Man
- Isle of Mull
- Isle of North Uist
- Isle of Rum
- Isle of Scalpay
- Isle of Skye
- Isle of Tiree
- Isle of Wight
- Isles of Scilly
- Kent
- Kincardineshire
- Kinross-shire
- Kirkcudbrightshire
- Lanarkshire
- Lancashire
- Leicestershire
- Lincolnshire
- London
- Merseyside
- Mid Glamorgan
- Middlesex
- Midlothian
- Morayshire
- Nairnshire
- Norfolk
- North Humberside
- North Yorkshire
- Northamptonshire
- Northumberland
- Nottinghamshire
- Orkney
- Oxfordshire
- Peeblesshire
- Perthshire
- Powys
- Renfrewshire
- Ross-shire
- Roxburghshire
- Rutland
- Selkirkshire
- Shetland Islands
- Shropshire
- Somerset
- South Glamorgan
- South Humberside
- South Yorkshire
- Staffordshire
- Stirlingshire
- Suffolk
- Surrey
- Sutherland
- Tyne and Wear
- Warwickshire
- West Glamorgan
- West Lothian
- West Midlands
- West Sussex
- West Yorkshire
- Wigtownshire
- Wiltshire
- Worcestershire