It is historically found in Turkey and south-eastern Bulgaria, with its presence recently confirmed in Greece.

As oak and walnut trees were removed for agriculture and forestry, its distribution became restricted to a few small spinneys in Edirne, in north-west Turkey.

[3] Roach's mouse-tailed dormouse lives in scrub and semi-open habitats with trees or bushes such as orchards, vineyards, hedgerows in arable land, and river banks.

In addition, the mouse-tailed dormouse is not strictly arboreal as it uses both trees and ground for moving and feeding.

Additionally, fossils of the mouse-tailed dormouse have been found in northern parts of Bulgaria, dating back to the Early Pleistocene Epoch within the Quaternary Period.