How big is Sicily?

Sicily, one of Italy's 20 regions, is the largest island in the Mediterranean Sea. Officially known as Regione Siciliana, it is one of the five autonomous regions of Italy. Sicily is located in the middle Mediterranean Sea, south of the Italian Peninsula. The Messina Strait divides the two. Its most notable landmark is Mount Etna, which is 3,329 m (10,922 ft) tall and is one of the most active volcanoes in the world. The climate on the island is characteristic of the Mediterranean. 

The Sicilian region surface is 25.711 km².