I can start this answer off by confirming that the smallest cathedral city in England is Wells in Somerset. Wells is not much more than a small market town, but is granted city status by virtue of its cathedral. Wells cathedral - the cathedral church of the diocese of Bath and Wells - is one of the finest in Britain and has what is believed to be the finest west front in Europe. The Bishop's Palace next door is a large moated fortified building and is the oldest continually inhabited home in the country.
However, the smallest cathedral city in the UK is in Wales. St David's is a city in far west Pembrokeshire in south Wales. The city is smaller than many villages and yet boasts a fine cathedral and the shrine of David, patron saint of Wales.
There are many cathedrals that are smaller, but are in larger cities or even small towns (and hence do not count) - for example, St Asaph cathedral is regarded as the smallest in Wales and is not much bigger than an average parish church (as it used to be one anyway). Newport Cathedral (the cathedral of St Woolos - or Gwynlliw in Welsh - is also very small but larger than St Asaph, and is of course situated in the large City of Newport. In England Oxford Cathedral is actually the chapel of Christ College Oxford and generally regarded as the smallest cathedral in England, although Oxford is nowhere near a small city. Another very small cathedral is that of the diocese of Sodor and Man on the Isle of Man, but as Man is not strictly part of the UK, this does not count.
The top twenty are as follows:
1 St David's p. 1,797
2 The City of London p. 7,185
3. Wells p. 10,406
4. Bangor (Wales) p. 11,173
5. Armagh (NI) p. 14,590
6. Ely p. 15,102
7. Ripon p. 16,468
8. Truro p. 20,920
9. Chichester p. 23,731
10. Lichfield p. 27,900
11. Salisbury p. 44,450
12. Winchester p. 41,420
13. Canterbury p. 43,432
14. Hereford p. 47,201
Inverness (Scot), p. 51,832, was a medieval cathedral city, but lost that status during the reformation. It was granted city status by royal charter in 2000. The former cathedral is now a presbyterian parish called the Old High Kirk.
15. St Albans p. 64,038
16. Lisburn (NI) p. 71,465
17. Carlisle p. 71,733
18. Chester p. 77,040
19. Derry/Londonderry (NI) p. 83,652
Bath, p. 83,992, comes next but does not have a cathedral. Its does however have a magnificent cathedral-sized abbey, which was a joint cathedral for the diocese of Bath and Wells in the middle ages.
20. Lincoln p. 87,600
The Winchester Cathedral is located at 9 The Close, Winchester, Hampshire in the United Kingdom. It is one of the largest cathedrals in the United Kingdom.
The Wells Cathedral is situated in the United Kingdom in Somerset. Should one live in the United Kingdom, one can take a guided bus tour to this lovely Cathedral. For those living outside of the United Kingdom, a travel agent would be able to put a package together to see the Cathedral.
Northern Ireland
The smallest bird in the United Kingdom is the Gold crest.
Pipistrelle
Salisbury Cathedral is located in England: 33 The Close Salisbury, Wiltshire SP1 2EJ, United Kingdom I have been multiple times and enjoy the Cathedral and tour thoroughly
In the United Kingdom, England has the largest population.
St Davids in West Wales, United Kingdom.
Christ Church Oxford is the smallest traditional Cathedral in England. However, with the creation of new cathedrals which had previously been parish churches, Christ Church lost its distinction of being the smallest Cathedral in the country.
The smallest city in the UK is St Davids, located in Wales. It received city status in 1995 as part of the celebrations for the 50th anniversary of Queen Elizabeth II's reign.
In terms of population, Northern Ireland is smallest with a population of under 2 million.
Peterborough Cathedral in the United Kingdom is larger than Mallorca Cathedral in Spain. Peterborough Cathedral is one of the largest cathedrals in Britain, measuring approximately 150 meters in length. In contrast, Mallorca Cathedral, also known as La Seu, is significantly smaller, measuring about 121 meters in length.