Yes, our UK local citation experts knew all counties, and all of them are listed here:

Aberdeenshire, Anglesey, Angus, Antrim, Argyll, Armagh, Ayrshire, Banffshire, Bedfordshire, Berkshire, Berwickshire, Brecknockshire, Buckinghamshire, Buteshire, Caernarfonshire, Caithness, Cambridgeshire, Cardiganshire, Carmarthenshire, Cheshire, Clackmannanshire, Cornwall, Cromartyshire, Cumberland, Denbighshire, Derbyshire, Devon, Dorset, Down, Dumbartonshire, Dumfriesshire, Durham, East Lothian, Fermanagh, Fife, Flintshire, Glamorgan, Gloucestershire, Hampshire, Herefordshire, Hertfordshire, Huntingdonshire, Inverness-shire, Kent, Kincardineshire, Kirkcudbrightshire, Lanarkshire, Lancashire, Leicestershire, Lincolnshire, Londonderry, Merionethshire, Middlesex, Midlothian, Monmouthshire, Montgomeryshire, Morayshire, Nairnshire, Norfolk, Northamptonshire, Northumberland, Nottinghamshire, Orkney, Oxfordshire, Peeblesshire, Pembrokeshire, Perthshire, Radnorshire, Renfrewshire, Ross-shire, Roxburghshire, Rutland, Selkirkshire, Shetland, Shropshire, Somerset, Staffordshire, Stirlingshire, Suffolk, Sudbury, Surrey, Sussex, Sutherland, Tyrone, Warwickshire, West Lothian (Linlithgowshire), Westmorland, Windermere, Wigtownshire, Wiltshire, Worcestershire, Yorkshire.