Yonne (French: [jɔn]) is a French department named after the river Yonne. It is one of the eight constituent departments of Bourgogne-Franche-Comté and is located in the northwest of the region, bordering Île-de-France. It was created in 1790 during the French Revolution. Its prefecture (capital) is Auxerre and its postcode number is 89.
|• President of the General Council||Jean-Marie Rolland|
|• Total||7,427 km2 (2,868 sq mi)|
|• Density||46/km2 (120/sq mi)|
|Time zone||UTC+1 (CET)|
|• Summer (DST)||UTC+2 (CEST)|
|^1 French Land Register data, which exclude estuaries, and lakes, ponds, and glaciers larger than 1 km2|
It is the fourth-most populous department in the region, with a population of about 342,000 (2012), and an average annual increase over the last few years of 0.41% per year. The biggest city is its capital Auxerre, with a population of 35,000 in the city and roughly 43,000 in the surrounding area.