Préfecture (capital): Auxerre[?]
Sous-préfectures: Avallon[?] and Sens[?].
See also: List of Communes of the Yonne département of France
... 24.0% of all households are made up of individuals and 11.7% have someone living alone who is 65 years of age or older. The average household size is 2.41 and th ...