From Penrhyn Castle, Dyfed to nearby cities in Dyfed
- Llanelli (37.78 mi)
- Aberystwyth (33.73 mi)
- Batemans Hill (29.07 mi)
- Bangor Teifi (15.87 mi)
- Bancyffordd (17.92 mi)
- Bancyfford (17.73 mi)
- Bancyfelin (22.47 mi)
- Banc y Darren (38.8 mi)
- Bancycapel (27.7 mi)
- Bancffosfelen (31.52 mi)
- Backe (22.26 mi)
- Ashfield (36.3 mi)
- Begelly (26.33 mi)
- Bengal (15.88 mi)
- Bentlass (31.88 mi)
- Black Tar (26.51 mi)
- Bigyn (38.34 mi)
- Beulah (9.15 mi)
- Betws Ifan (9.71 mi)
- Betws Bledrws (27.82 mi)
- Betws (38.21 mi)
- Bethlehem (20.38 mi)
- Bethlehem (36.74 mi)
- Bethesda (19.85 mi)
- Bethania (27.97 mi)
- Berea (25 mi)
- Angle (33.72 mi)
- Amroth (26.33 mi)
- Ammanford (37.86 mi)
- Abergwili (25.13 mi)
- Abergorlech (28.96 mi)
- Aber Giâr (22.81 mi)
- Aberffrwd (38.15 mi)
- Abereiddy (24.38 mi)
- Abercych (8.34 mi)
- Abercastle (20.57 mi)
- Aber banc (13.92 mi)
- Aberarth (22.52 mi)
- Aber Arad (11.99 mi)
- Aberlerry (39.03 mi)
- Abermagwr (35.59 mi)
- Abermeurig (26.01 mi)
- Ambleston (17.16 mi)
- Alltyblaca (23.42 mi)
- Alltwalis (21.62 mi)
- Allt (38.85 mi)
- Albro Castle (2.23 mi)
- Albert Town (24.66 mi)
- Adpar (11.41 mi)
- Achddu (35.15 mi)
- Aberporth (7.28 mi)
- Abernant (20.31 mi)
From Penrhyn Castle, Dyfed to all cities in Dyfed starting with letter A
- Aber, Dyfed
- Aber Arad, Dyfed
- Aber banc, Dyfed
- Aber Giâr, Dyfed
- Aberaeron, Dyfed
- Aberarth, Dyfed
- Abercastle, Dyfed
- Abercych, Dyfed
- Abereiddy, Dyfed
- Aberffrwd, Dyfed
- Abergorlech, Dyfed
- Abergwili, Dyfed
- Aberlerry, Dyfed
- Abermagwr, Dyfed
- Abermeurig, Dyfed
- Abernant, Dyfed
- Aberporth, Dyfed
- Aberystwyth, Dyfed
- Achddu, Dyfed
- Adpar, Dyfed
- Albert Town, Dyfed
- Albro Castle, Dyfed
- Allt, Dyfed
- Alltwalis, Dyfed
- Alltyblaca, Dyfed
- Ambleston, Dyfed
- Ammanford, Dyfed
- Amroth, Dyfed
- Angle, Dyfed
- Ashfield, Dyfed
From Penrhyn Castle, Dyfed to Cities in other Counties
- Bedfordshire
- Berkshire
- Bristol
- Buckinghamshire
- Cambridgeshire
- Cheshire
- Cornwall
- Cumbria
- Derbyshire
- Devon
- Dorset
- Durham
- East Riding of Yorkshire
- East Sussex
- Essex
- Gloucestershire
- Greater London
- Greater Manchester
- Hampshire
- Herefordshire
- Hertfordshire
- Isle of Wight
- Kent
- Lancashire
- Leicestershire
- Lincolnshire
- Merseyside
- Norfolk
- North Yorkshire
- Northamptonshire
- Northumberland
- Nottinghamshire
- Oxfordshire
- Rutland
- Shropshire
- Somerset
- South Yorkshire
- Staffordshire
- Suffolk
- Surrey
- Tyne & Wear
- Warwickshire
- West Midlands
- West Sussex
- West Yorkshire
- Wiltshire
- Worcestershire
- Isle of Man
- County Antrim
- County Armagh
- County Derry Londonderry
- County Down
- County Fermanagh
- County Tyrone
- Aberdeenshire
- Angus
- Argyll and Bute
- Ayrshire and Arran
- Banffshire
- Berwickshire
- Caithness
- City of Aberdeen
- City of Dundee
- City of Edinburgh
- City of Glasgow
- Clackmannan
- Dumfries
- Dunbartonshire
- East Lothian
- Fife
- Inverness
- Kincardineshire
- Lanarkshire
- Midlothian
- Moray
- Nairn
- Orkney
- Perth and Kinross
- Renfrewshire
- Ross and Cromarty
- Roxburgh Ettrick and Lauderdale
- Shetland
- Stirling and Falkirk
- Sutherland
- The Stewartry of Kirkcudbright
- Tweeddale
- West Lothian
- Western Isles
- Wigtown
- Clwyd
- Dyfed
- Gwent
- Gwynedd
- Mid Glamorgan
- Powys
- South Glamorgan
- West Glamorgan