| Flag Type: | County Flag | 
|---|---|
| Flag Date: | C12th | 
| Flag Designer: | Traditional | 
| Adoption Route: | Traditional | 
| UK Design Code: | UNKG7423 | 
| Aspect Ratio: | 3:5 | 
| Pantone® Colours: | Red 186, Black, White, Yellow 116 | 
| Certification: | Flag Institute Chief Vexillologist, Graham Bartram | 
| Notes: | The Buckinghamshire Flag is a community flag proclaiming the unique identity of this historic English county. The traditional flag of Buckinghamshire features a chained swan on a bicolour of red and black. The Swan emblem dates back to Anglo-Saxon times when Buckinghamshire was known for breeding swans for the king. | 


