A county day is a day to celebrate everything we love about a county, its history and heritage, its towns and villages, its landscapes and architecture, its arts and literature and, most of all, its people.
The following is a list of all the county days in 2025. If you know of a county day not on our list then let us know. If your county does not currently have a county day then set one up. Start small, as all of the established county days did.
| County | Date | Reason |
| Shropshire Day | 23rd February 2025 | feast day of St Milburga |
| Cornwall Day | 5th March 2025 | feast day of St Piran |
| County Durham Day | 20th March 2025 | feast day of St Cuthbert |
| Cheshire Day | 30th March 2025 | charter of liberties granted to Cheshire by Edward I |
| Orkney Day | 16th April 2025 | feast day of St Magnus |
| Warwickshire Day | 23rd April 2025 | birth day of Shakespeare |
| Huntingdonshire Day | 25th April 2025 | birth day of Oliver Cromwell |
| Staffordshire Day | 1st May 2025 | founding Josiah Wedgwood & Sons 1759 |
| Surrey Day | 10th May 2025 | Sat in early May |
| Somerset Day | 11th May 2025 | Alfred the Great at Athelney |
| Middlesex Day | 16th May 2025 | Battle of Albuerra |
| Northumberland Day | 25th May 2025 | last Sat in May |
| Kent Day | 26th May 2025 | feast day of St Augustine |
| Dorset Day | 1st June 2025 | feast day of St Wite |
| Pembrokeshire Day | 1st June 2025 | unknown |
| Devon Day | 4th June 2025 | feast day of St Petroc |
| Wiltshire Day | 5th June 2025 | county flag first flown 2007 |
| Sussex Day | 16th June 2025 | feast day of St Richard |
| Suffolk Day | 21st June 2025 | longest day of year |
| Shetland Day | 21st June 2025 | county flag recognised |
| Hampshire Day | 15th July 2025 | St Swithun’s Day |
| Historic County Flags Day | 23rd July 2025 | anniversary Devon Flag registration 2002 |
| Norfolk Day | 27th July 2025 | unknown |
| Buckinghamshire Day | 29th July 2025 | Stoke Mandeville Games 1948 |
| Yorkshire Day | 1st August 2025 | Battle of Minden 1759 |
| Nottinghamshire Day | 25th August 2025 | royal standard at Nottingham Castle 1642 |
| Rutland Day | 13th September 2025 | Grand Assault of Gibraltar Day |
| Gloucestershire Day | 21st September 2025 | unknown |
| Derbyshire Day | 22nd September 2025 | county flag first flown |
| Cumberland Day | 24th September 2025 | baptism of John Peel |
| Monmouthshire Day | 25th September 2025 | feast day of St Cadoc |
| Westmorland Day | 29th September 2025 | Creation of title “Earl of Westmorland” |
| Lincolnshire Day | 1st October 2025 | Lincolnshire Uprising |
| Oxfordshire Day | 19th October 2025 | feast Day of St Frideswide |
| Northamptonshire Day | 25th October 2025 | feast day of St Crispin |
| Essex Day | 26th October 2025 | feast day of St Cedd |
| Lancashire Day | 27th November 2025 | first Lancastrians sent to Parliament 1295 |
| Bedfordshire Day | 28th November 2025 | birth day of John Bunyan |
| Caernarfonshire Day | 28th November 2025 | death of Owain Gwynedd |