It is shown that the definition for the volume of stationary black holes
advocated in hep-th/0508108 readily generalizes to the case of dilaton gravity
in D=2. The dilaton field is included as part of the measure. A feature
observed in D=3 and 4 has been the impossibility to obtain infinite volume
while retaining finite area without encountering some kind of pathology. It is
demonstrated that this also holds in D=2. Consistency with spherically reduced
gravity is shown. For the Witten black hole it is found that the area is
proportional to the volume.Comment: 9 pages, 3 figures, uses iopart_mod.cl