Magoula, Attica in the context of "Athens Airport–Patras railway"

The Athens metropolitan area (Greek: Μητροπολιτική Περιοχή της Αθήνας) spans 2,928.717 km (1,131 sq mi) within the Attica region and consists of 58 municipalities plus parts of East Attica and West Attica, having reached a population of 4,073,179 according to the 2021 census. The municipalities of Athens and Piraeus both serve as the two metropolitan centres of the Athens metropolitan area.

According to the Hellenic Telecommunications and Post Commission, the Athens metropolitan area consists of all areas with a dialing code of 21 and includes areas such as Salamina, Elefsina, Kifissia, Mandra, Magoula,Aspropyrgos, Pallini, Agios Stefanos, Dionysos, Parnitha, Koropi, Vari, Vouliagmeni, Voula and the Athens International Airport.

Elefsina (Greek: Ελευσίνα, romanized: Elefsína) or Eleusis (/ɛˈljuːsɪs/ eh-LEW-siss; Ancient Greek: Ἐλευσίς, romanized: Eleusís) is a suburban city and municipality in Athens metropolitan area. It belongs to West Attica regional unit of Greece. It is located in the Thriasio Plain, at the northernmost end of the Saronic Gulf. North of Elefsina are Mandra and Magoula, while Aspropyrgos is to the northeast.

It is the site of the Eleusinian Mysteries and the birthplace of Aeschylus. Today, Elefsina is a major industrial centre, with the largest oil refinery in Greece as well as the home of the Aeschylia Festival, the longest-lived arts event in the Attica Region. On 11 November 2016, Elefsina was named the European Capital of Culture for 2021, which became effective in 2023 due to the COVID-19 pandemic postponement.