During the extreme heat of Greek summers, many people from the whole Athens urban area drive up to Drosia on the weekends, seeking cool and shade in the taverns, cafes and one outdoor cinema theater, for which the area is known.

Drosia is situated in the hills in the northeastern part of the Athens conurbation, at about 370 m elevation.

Its built-up area is continuous with those of the neighbouring suburbs Stamata, Rodopoli, Dionysos and Ekali.

Greek National Road 83 (Athens - Marathon - Rafina) passes through Drosia.

A former rural village, Drosia started growing with the arrival of refugees from Pontus after the Greco-Turkish War of 1919-1922.