The city of Avallon is in the southeastern part of the Yonne department.
The city is on small hills along the Cousin river, a river that flows mainly in the Yonne department.

The commune of Avallon has an area of 26.8 km² (10.3 sq mi).
Its average altitude is 266 m (873 ft); at the city hall, the altitude is 220 m (720 ft).

The city of Avallon is surrounded by the communes:
The city of Avallon is in the southeastern part of the Yonne department. The city is on small hills along the Cousin river, a river that flows mainly in the Yonne department.
The commune of Avallon has an area of 26.8 km² (10.3 sq mi). Its average altitude is 266 m (873 ft); at the city hall, the altitude is 220 m (720 ft).
The city of Avallon is surrounded by the communes:
Avallon