Barcelona is the capital and largest city of Catalonia, Spain, located on the northeastern Mediterranean coast of the country. It is one of the largest Mediterranean cities, situated on the coast between the Llobregat and Besòs rivers, with the Serra de Collserola mountains to the west.
Barcelona is known for its culture and tourist attractions including UNESCO-listed architecture by Antoni Gaudí and Lluís Domènech i Montaner. It has held various international sporting events including the 1992 Summer Olympics.
The flag of Barcelona, officially adopted in 1906, features the Cross of Saint George and the Catalan Senyera, divided into four quadrants. The cross represents the city’s patron saint, the red and yellow stripes symbolize Catalonia.
| City Area | 2024 Population | Flag Ratio | Adopted |
| 101.4 km² / 39.2 mi² | 1,620,343 | 1:2 | 1906 |
