Region of Attiki

Located at the eastern end of Central Greece, the Region of Attica covers approximately 3,808 square kilometers. Apart from Athens, within the region there are the cities of Eleusis, Megara, Lavrio, and Marathon, as well as a small part of the Peloponnese and the islands of Salamina, Aegina, Poros, Hydra, Spetses, Kythira and Antikythira. About 3,750,000 people live in the area, of which more than 95% are residents of the Athens metropolitan area.

It is the first in population and the most densely populated region of Greece, since it is home to the urban complex of Athens, which is the capital of Greece, bringing together 1/3 of the country's population, i.e. 3,761,810 inhabitants according to the 2001 census .